3D Scanning Basics Archives - GoMeasure3D https://gomeasure3d.com/category/3d-scanning/3d-scanning-basics/ GoMeasure3D Tue, 05 May 2026 20:43:32 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 Digitizing the Past: How 3D Scanning Adds A New Dimension to Heritage Preservation https://gomeasure3d.com/blog/digitizing-the-past-3d-scanning-heritage-preservation/ https://gomeasure3d.com/blog/digitizing-the-past-3d-scanning-heritage-preservation/#respond Mon, 13 Apr 2026 19:42:35 +0000 https://gomeasure3d.com/?p=32928 Want to learn how 3D scanning is transforming heritage preservation with real-life examples? Follow this in-depth guide to explore common questions and topics.

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Heritage preservation

“To talk about the past, if you can tie it to an object, it becomes people, who lived maybe 4,000 years ago, as opposed to just simply very distant information.”

Dr. Wren Stevens Madison Art Collection Director James Madison University

Digital preservation provides a gateway into the past. 3D scanning captures highly accurate, full-color digital twins of ancient artifacts. This revolutionary approach redefines how history is documented, offering researchers new perspectives on studying and understanding past lives.

3D scanning artifact compared to original
Comparison between an ancient artifact (right) and its digital replica (left).
Photo source: Article, Ready for their close-ups: Digitizing the Madison Art Collection

This Egyptian Sarcophagus Fragment is part of the Madison Art Collection, a repository of over 10,000 artifacts—from sculptures and coins to icons and other artworks. The collection is cared for by James Madison University. Through the organization’s efforts to digitize the collection with 3D scanning technology, visitors can now explore highly detailed 3D models online—some dating back to before the construction of the pyramids. These ancient artifacts are accessible to anyone without the need to view them in person, making them available to a wider audience.

The digital twin of the Egyptian Sarcophagus Fragment was captured with the Artec Space Spider 3D scanner, the predecessor of the Artec Spider II.
Source: Digital Projects at JMU Libraries on Sketchfab

Three Major Areas Where 3D Scanning Supports Heritage Preservation
Education and Research
Education and Research:
New Way to Study the Past

Professional 3D scanners create high-resolution models that reveal more detail than photographs (2D images). 3D models of historical structures, architectural features, and artifacts provide accurate digital representations.

Digital Archive
Digital Archive:
Accessibility and Sharing

3D models can be shared with researchers, educators, and the public—broadening access to cultural heritage. These models are a part of virtual museum exhibits, online collections, and educational archives, making heritage sites and artifacts available to a global audience.

Sculpture
Conservation:
Restoration Efforts

3D models capture millions of surface points, allowing architects and conservators to anticipate and plan repairs with precision while preserving structural integrity.


Want to see how 3D scanning is transforming heritage preservation with real-life examples?

Follow this in-depth guide to explore common questions and topics. You can skip ahead to the section that interests you most.


Chapter #1

Why Use 3D Scanning for Heritage Preservation?

Heritage preservation involves the protection, conservation, and maintenance of cultural elements passed down over time—such as historic buildings, monuments, artifacts, clothing, tools, cultural landscapes, and traditional practices. It’s a way to safeguard history and culture, detailing how people lived and the traditions that shaped their lives.

Traditionally, heritage preservation relied heavily on paper archives—such as sketches, drawings, photographs, and written records. 3D scanning is emerging as a powerful tool for documenting artifacts, introducing new possibilities for observing, studying, and analyzing the past like never before.

How do 3D scanners work?

A 3D scanner captures a physical object into a realistic 3D representation on the computer—known as a 3D model or a digital twin. This technology enables the creation of accurate digital records, ensuring our cultural heritage remains accessible and preserved for future generations to study and learn—anytime, anywhere.

How 3D Scanning Works
Acquiring Data from Real-Life Objects

1. Acquiring Data from Real-Life Objects

A 3D scanner captures detailed images of an artifact’s surface to measure its dimensions and shape. This data is processed by a 3D scanning software (using advanced algorithms) to create a digital 3D model of the artifact.

Chapter #2

Benefits of Using a High-Accuracy 3D Scanner for Heritage Preservation

Museums, cultural institutions, and university departments are increasingly adopting professional 3D scanners to document and preserve culturally significant landmarks and archaeological sites.

Students at the University of Pittsburgh partnered with the Carnegie Museum of Natural History to digitize artifacts for the exhibit “From Egypt to Pittsburgh,” which featured the stories of objects that made their way across the Atlantic.
Artifacts are digitized with an Artec Eva handheld 3D scanner.
Main Benefits of Using a Professional 3D Scanner
  • Accuracy and Completeness
    Accuracy and Completeness

    3D scanners provide highly repeatable measurements of an object’s geometry and surface details. This reliable data that can be used for detailed study, sharing, and analysis.

  • Fast at Documentation
    Fast, Reliable Documentation

    3D scanners enable fast, accurate capture of artifacts and heritage sites compared to traditional methods. Document detailed records in minimal time.

  • Capture High-Resolution Details
    Capture Objects in High-Resolution

    Digital 3D models let researchers examine fine details, from fingerprints on handmade artifacts to cut marks on bones. They are often difficult to see with the naked eye.

  • Ease of Use
    Ease of Use: Simple and Intuitive

    Professional 3D scanners like Artec are easy to use—simply point and shoot. Paired with intuitive software, it’s easy to capture 3D models with minimal training.

  • Portability
    Portability

    Certain 3D scanners are designed for remote, on-site use. The handheld, battery-powered, wireless Artec Leo has a touchscreen and built-in processing, so you can capture data without a computer.

  • Non-Contact Measurement
    Non-Contact

    Professional scanners can capture objects without physical contact, eliminating the risk of damage to fragile or irreplaceable artifacts during the documentation process.

  • True Color Representation
    True Color Likeness

    3D scanning preserves the shape of cultural artifacts along with true-to-life colors and textures, providing a more authentic digital record for research, education, and heritage preservation.

  • Flexibility and Versatility
    Flexibility and Versatility

    You can digitize artifacts of various sizes, ranging from small objects to large monuments. Some 3D scanners are adaptable for scanning objects in both indoor and outdoor environments.

Chapter #3

What Objects Can a Professional 3D Scanner Scan? Types, Sizes, and Examples

Professional 3D scanners capture digital 3D models that accurately preserve an artifact’s form and texture at sub-millimeter precision. They can scan everything from small artifacts to entire buildings and environments. Some also capture challenging surfaces such as fabric, hair, shiny materials, and dark objects.

It’s important to note that different scanners are optimized for different object sizes and applications. The following examples highlight what 3D scanning can achieve.

Extra-Small Object Example – Coin

How fast can a 3D scanner digitize a physical object?

Scanning time: 2 minutes
Processing time: 8 minutes
Total time: 10 minutes

Scanned with Artec Space Spider 3D scanner

The 3D model accurately reflects the surface details and irregularities of the original coin, including the varied bronze coloration, patina, surface scratches, pitting, and the fine geometry of the small Chinese characters. The size of the coin and the reflective nature of the metal surface did not cause challenges during the 3D scanning process.
Source: Artec3D Sketchfab.
Small Object Example – Flask
Pilgrim flask
Original Artifact

This Pilgrim Flask with Molded Bird Design is part of the Mediterranean Markets: Connecting the Ancient World Exhibit. Ceramic (baked). Roman-Byzantine Period. HMANE 1907.64.445

Digital Twin

This 3D model was scanned by Lauren Wyman with the Artec Spider 3D scanner. Visit the Harvard Museum of the Ancient Near East Sketchfab page to view the entire collection.

Medium Object Example – Armor

Japanese “Tosei dö gusoku” armor with “kabuto” helmet, from the Romero Ortiz Collection. Worn by samurai—elite warriors who served a daimyo—this armor evolved into ornate, finely crafted designs, particularly during the Edo period. This 3D model was created using the Artec Leo scanner.

See more of the collection at Global Digital Heritage and GDH-Afrika Sketchfab page.

Large Objects – Buildings
Artec Ray at the Huelen Zant fortress

The remains of the Huelen Zant fortress in Luxembourg were scanned with the Artec Ray II using LiDAR technology. It was part of the exhibit for the Luxembourg Pavilion at the World Expo in Osaka.

3D model of Huelen Zant fortress

A 3D model of the historic site now allows people who haven’t yet visited Luxembourg to explore it virtually. Source: Artec 3D digitizes Luxembourg’s cultural landmarks for the Luxembourg Pavilion at World Expo 2025 in Osaka

Large-Scale Historical Structures – Ancient Assyrian Reliefs

CyArk partnered with the British Museum to document a large portion of the Assyrian Collection in three days. In this early animation, the reliefs are illuminated by torchlight. This evokes the sense of how they may have appeared over 2,500 years ago. The 3D data was captured using the Artec Eva, a structured-light scanner. The project aimed to digitize the collection and also see history in a new light.

The Assyrian reliefs and sculptures have been part of the British Museum’s collection for 160 years. However, traditional photographs and videos have limitations in conveying the actual scale and detail of the narrative scenes. To address this issue, the museum partnered with CyArk to create detailed 3D scans of the reliefs.

CyArk is a nonprofit organization dedicated to using emerging technologies, like 3D scanning, to build a 3D digital archive of cultural heritage sites at risk of being lost to natural disasters, human conflict, or the effects of time. They digitally document more than 200 square meters of ancient Assyrian reliefs, a massive undertaking to preserve history under the museum’s care.

Scanning the ancient Assyrian reliefs
In just over two days, CyArk and the British Museum captured 205 square meters of the ancient Assyrian reliefs.
Scanning with Artec Eva
They collected 113 GB of raw data of geometry and texture using the Artec Eva handheld 3D scanner.
Panels of the Assyrian reliefs
The carved images depict a range of scenes—from symbolic representations of royal accomplishments to vivid portrayals of conquest and hunting—all intended to glorify the Assyrian monarch.
Artec Studio
The Artec Eva 3D scanner captured images of the ancient Assyrian reliefs, which are then processed in Artec Studio 3D scanning software.

Why is it important to digitally preserve physical history?

In 612 BCE, Nineveh—the capital of the Assyrian Empire—fell to the Babylonians. As in many conquests, the faces of kings and monuments were deliberately defaced to erase them from history. This pattern of destruction, repeated across centuries and still occurring today, underscores the need to safeguard material heritage. Digital preservation protects history from physical destruction by natural decay, conflict, and attempts to erase cultural memory. (Source: CyArk website: Assyrian Collection of the British Museum)

These 3D models illustrate how 3D scanning can capture artifacts from tiny, intricate pieces to massive, monumental works, ensuring cultural heritage is accurately documented, protected, and remains accessible over time.

Chapter #4

3D Scanning and Printing: A New Way to Study History

It is in our human nature to enjoy the tactile experience of touching and feeling objects. With 3D scanning, once an artifact has been digitized, this data can be used to create highly accurate 3D printed replicas using a 3D printer that resembles close to the original.

Cleaning replica
3D printing an artifact. In this step, the printed replica was cleaned after printing.

In most cases, artifacts are too rare and fragile to handle regularly without risking damage. 3D printing preserves the originals while producing detailed replicas that a wider audience can touch and handle. By combining 3D scanning and 3D printing, institutions can:

  • Support hands-on learning
  • Enhance the experience of museum and exhibit visitors with 3D printed models of artifacts

How 3D Printing Works

This video demonstrates the process of taking an original artifact through the scan to print.

This highly detailed silver and glass flask from the Victoria and Albert Museum’s collection was scanned using the Artec Space Spider. While shiny, reflective surfaces are typically a challenge for many 3D scanners, this technology accurately captured the flask’s true form with impressive detail.
Comparison between real artifact and 3d printed
Comparison between the real artifact (left) to the 3D printed version (right).

Using 3D Printing in an Innovative Way

The synergy between 3D scanning and 3D printing provides a fresh perspective on studying the past that cannot be accomplished in any other way. A notable example of this is Jamestown Rediscovery Foundation (JRF), an organization dedicated to the preservation, education, and archaeological investigation of the first permanent English settlement in America more than 400 years ago.

Over the years, the organization has recovered European pottery alongside Virginia Indian ceramics. The archeology team was able to recover one-sixth of the pot in the form of fragments, with the texture of a negative impression of a Virginia Indian thrush basket on the ceramic pot. The vessel was made by pressing clay against the interior of a woven basket made by Native Indians, leaving the basket’s impression on the pot.

Jamestown rediscovery
Source: Jamestown Rediscovery

The artifacts provided historical evidence of how English settlers integrated aspects of Virginia Indian culture, adapting indigenous objects and technologies for their own use.

archaeology applications
3D model of pot

To enhance the visualization of this particular artifact further, the 3D technology team recreated the basket from the negative impressions left by the pot by 3D printing the positive impression. The exhibition provided the opportunity for the public to see what an actual Virginia Indian basket would have looked like for the first time.

Weave recreated

“Through this [imaging and printing] process here, we’re going to end up creating a positive of the only Virginia Indian basket that’s ever been seen.”

David Givens Senior Staff Archaeologist Jamestown Rediscovery
Chapter #5

Facilitating Sharing and Collaboration: Digital Libraries and Virtual Exhibits

Digitizing artifacts and making them accessible online empowers researchers, educators, and students to explore, examine, and interact with them, broadening access to rare objects. This digital access not only enables scholars and institutions to collaborate, share discoveries, and conduct comparative studies, but also engages the public with cultural heritage. Below are a few examples of digital libraries and virtual exhibits you can explore online.

MorphoSource – 3D Data Repository

MorphoSource serves the academic community as an online repository for 3D and 2D digital models of biological specimens, paleontological finds, and cultural heritage objects. Users can access over 100,000 models—including CT scans, photogrammetry datasets, and 3D meshes—directly in a web browser, with detailed metadata to support discovery and research.

MorpoSource website
MorpoSource website is a digital library serving the academic community.
Sketchfab – Online Platform for Publishing, Sharing, and Discovering 3D Content

Sketchfab, the world’s largest online platform for publishing and exploring 3D, Augmented Reality (AR), and Virtual Reality (VR) content, offers a dedicated section for Cultural Heritage. This platform allows museums, cultural institutions, and researchers to share high-quality 3D models of artifacts and historical sites, making cultural heritage accessible to audiences worldwide.

Sketchfab users
Museums worldwide—including The British Museum, The Smithsonian Institution, and the Minneapolis Institute of Art—have made their digital collections available on Sketchfab, giving anyone interested the opportunity to explore the history and cultures of civilizations from around the globe.
Natural History Museum Vienna
Natural History Museum Vienna has more than 800+ 3D models on Sketchfab, giving the public access to the rare artifacts. See more collections on Sketchfab.
Tapestry – Web-Based Storytelling Platform
Tapestry
Image Source: Tapestry.

If you are looking for an immersive experience, Tapestry brings historic places to life through immersive 3D storytelling available online. Tapestry makes cultural heritage accessible by offering virtual experiences that allow anyone to visit historical sites and discover their stories. The organization has created 100+ experiences with 2.5 million virtual visitors coming to learn about cultural heritage sites from around the world.

Using advanced 3D technologies like LiDAR scanning and photogrammetry, CyArk builds high-resolution 3D models that form the foundation of each story. These digital reconstructions go beyond visual detail—they’re enriched with narration, ambient sound, archival imagery, and personal stories from people connected to the site. The result is an interactive tour that lets you explore different cultural experiences from every angle, whether on your desktop or phone, in a way that feels deeply engaging.

Tapestry website
Tapestry provides a guided tour with rich storytelling and an amazing 3D reconstruction of historical sites. Visit more 3D virtual tours on the Tapestry website.

What’s truly impressive is that you can go through an immersive experience of historical sites anywhere in the world, from the Forgotten Ship of the USS Utah Memorial at Pearl Harbor to the Tombs of Sudan’s ancient rulers.

virtual tour of the Forgotten Ship of the USS Utah Memorialn
The virtual tour of the USS Utah Memorial at Pearl Harbor’s Forgotten Ship includes footage from veterans explain how they lived during those difficult times.
Virtually explore El Kurru and the Tomb of Tanwetamani
Virtually explore El Kurru and the Tomb of Tanwetamani, a royal cemetery for the kings and queens of ancient Kush in Sudan.
Preserved paintings
The historical site is a 2,500-year-old tomb protected by the local community. Go down the staircase and deep down into the site to learn about the history.

To go one step further, CyArk uses VR to create immersive experiences that allow people to explore heritage sites as if they were there. Virtual reality (VR) places users inside a site rather than simply showing it on a screen. Users perceive scale, depth, and spatial relationships that photos or videos often lose, making monuments and landscapes feel more lifelike. VR surrounds the viewer with 360° visuals and sound and often enables interactive exploration, creating the sensation of being there. This deeper engagement makes the experience more memorable and builds a stronger emotional connection to the site and its history.

Video featuring different VR projects by CyArk. Source: Tapestry website
Chapter #6

Restoration and Conservation

Many precious artifacts and historical buildings that tell our story are at risk of damage or loss over time. To protect them for future generations and to preserve an accurate record of the past, 3D scanning creates lasting digital versions of these physical objects.

3D scanning

Funeral busts from the second century AD were severely damaged with hammers in the ancient Syrian town of Palmyra. The two busts—one male and one female—were taken to Rome, where cultural heritage experts from the Italian Institute of Conservation and Restoration undertook their repair. Using 3D scanning, the shattered faces were digitally captured, and a 3D printer was used to create prosthetic pieces. These prosthetics are removable and can later be replaced with the original fragments if they are ever recovered.

Photo credit: Chris Warde-Jones, The Telegraph
Source: Telegraph article, Stone sculptures smashed by Isil in ancient city of Palmyra restored to former glory by Italian experts.

Conservation Efforts
Digitizing sculpture

Co-founder of Skeiron, Andriy Hryvnyak, 3D scanning a sculpture so it can be digitally preserved.
Still captured from Artec 3D video, Digitizing Ukrainian heritage with Artec 3D.

The war in Ukraine has destroyed countless historical sites and artifacts, many of which are irreplaceable cultural treasures. To protect what remains, Skeiron has dedicated its work to safeguarding Ukraine’s rich heritage by 3D scanning as much of its physical history as possible and making it digitally accessible to the world. These digital archives will also enable museums to create accurate replicas in the future, ensuring that even when tangible history is lost, cultural identity can still be preserved through digitization.

Sculpture 3D Scan

The sculpture the Skeiron team scanned using the Artec Leo handheld 3D scanner.
Check out more 3D models on its Sketchfab page.

Learn more about the importance of digitally preserving Ukraine’s cultural heritage in this BBC Click episode.

Following the launch of #SaveUkrainianHeritage campaign to protect endangered architectural monuments, Skeiron—supported by Artec 3D—introduced Museum in 3D. Now featured on Google Arts & Culture, the project features over 200 museum artifacts captured with the Artec Leo, all of which can be explored online.

Monument 3d scan

You can interact with monuments scanned by Skeiron on the Google Arts & Culture website.
Photo source: Google Arts & Culture website

Repairing Artifacts and Historical Sites

As a proactive step to safeguard cultural heritage, conservators can build a comprehensive digital library of 3D models of artifacts and heritage sites. These models capture their current condition, record architectural details, and assess structural integrity. Documentation makes it easier to monitor changes over time and identify areas needing repair or restoration in the future. With accurate 3D data, conservators can plan restoration work with precision while preserving the authenticity of the original structure.

Art, our Application Engineer, scanned the monument outdoors solely for documentation and archival purposes. If the monument requires restoration in the future, the digital file will serve as a valuable tool for repairing the artwork.

3D model of the WWI monument that measures 10 feet in height.

Conclusion

Ukraine's cultural heritage
Photo Source: Article, Artec 3D steps up in effort to preserve Ukraine’s cultural heritage

“Why is it important to preserve cultural heritage? Because culture defines who we are in principle. Culture is what makes us unique. It’s material culture, living culture, languages, writing—is what we are. Only by preserving this culture would we preserve ourselves and our identity.”

Iryna Lutsyk PhD, Junior Researcher of the Archaeology Department of the I. Krypaikevych Institute of Ukrainian Studies Quote taken from video, Digitizing Ukrainian heritage with Artec 3D

We hope this article provides a clearer understanding of the significant role 3D scanners play in preserving cultural heritage. By capturing precise, high-resolution digital replicas of artifacts, structures, and historical sites, 3D scanning allows researchers, educators, and the public to study and experience these treasures without risking damage to the originals. The true value lies in its ability to objectively document history and share accurate records with the world, making cultural heritage more accessible, engaging, and protected for future generations.

3D model of The Princess for historical reconstruction.


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Got Questions?

Do you still have questions about how 3D scanning can transform your heritage preservation efforts? Please feel free to contact us with your questions.

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Everything You Want to Know About Color 3D Scanning https://gomeasure3d.com/blog/everything-you-want-to-know-about-color-3d-scanning/ https://gomeasure3d.com/blog/everything-you-want-to-know-about-color-3d-scanning/#respond Fri, 02 Aug 2024 00:12:24 +0000 https://gomeasure3d.com/?p=28476 What does the term texture mean? Can you show me a color 3D scanning demo? What applications would benefit from color 3D scanning? In this guide, we'll cover all you need to know about this topic.

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Nike shoes color scan
3D model source: Artec 3D, Trainer

What does the term texture mean in 3D scanning?

When a 3D scanner captures texture (also known as color texture), it not only acquires the geometric shape of the object but also records its surface details and characteristics—such as color, material, and fine textures. This information is essential for creating realistic and hyper-detailed digital models that accurately represent the physical appearance of the scanned object in 3D—a digital twin. A 3D scanner capable of color 3D scanning can capture the texture of an object.

Geometry capture: It involves creating an accurate digital representation of the object’s physical shape and dimensions in three-dimensional space.

Geometry + Texture capture: Capturing the 3D geometry of an object as well as the visual appearance and tactile qualities of the object’s surface, including color.

Hip Bone 3D Scans (Scanned with the Artec Space Spider)
Geometry Capture Only

Output: A colorless, textureless model

Geometry + Texture

Output: Textured 3D model

Maya Wood Carving (Scanned with the Artec Space Spider)
Geometry Capture Only

Output: A colorless, textureless model

Geometry + Texture

Output: Textured 3D model

Can you show me what color 3D scanning looks like?

Here’s a quick video that shows how color texture is captured using the Artec Space Spider.

Here is the final 3D model.

Soda 3D Scan

What applications would benefit from color 3D scanning?

Applications Requiring Only Geometry Capture

For a lot of applications, capturing the color and texture of an object isn’t necessary if your goal is to get accurate 3D measurements of an object. Some applications where textureless 3D scans are sufficient include engineering, design, and virtual simulations.

Scans used for reverse engineering applications
An example where you don’t need color scans. For reverse engineering applications, you just need to get precise and accurate surface measurements from the scan data to be able to sketch the object to CAD without the need for color information.
Applications Requiring Color Texture

Color texture data is beneficial for applications where visual realism is important. Color 3D scans are useful when you need a true representation of the physical object in color and likeness.

Bug texture scan
Truck color scan
For color 3D scanning, you can capture an object as small as a bug (using to an extra large object like a semi-truck.
Some use cases include:
  • E-commerce applications where you want to showcase a 3D model in an online store
  • Documenting and preserving physical objects in digital form (museums or research)
  • Virtual reality, augmented reality, and mixed reality
  • CGI for visual effects (movies and video games)
  • Virtual reality, augmented reality, mixed reality applications (for use with Apple Vision Pro or Metaquest headsets)
James Madison Statue
James Madison Statue

To commemorate Constitution Day 2002 and the 251st birthday of James Madison, this life-size statue honors the fourth president of the United States.

Source: Public Art at JMU: James Madison, Constitution Day by JMU SADAH

The Artec Leo handheld 3D scanner is capable of 3D scanning outdoors. You don’t need to connect to a laptop for 3D scanning. It is battery-powered and has its own internal processing for data capture.

Interact with the 3D model

Grocery Store Shelf

What’s remarkable about a 3D scanner is its ability to quickly and precisely capture a digital replica of real-life objects. 3D scanners are great for 3D product visualization for e-commerce, as well as in retail and grocery stores for documenting merchandise on shelves for merchandising purposes.

Scanned with Artec Leo handheld 3D scanner

Artec Studio Texture Mapping

Do you have questions on color 3D scanning?

We can help!

Speak to our 3D scanning specialist

Which 3D scanners are capable of capturing texture?

Typically, a 3D scanner that can capture the texture of an object is more expensive compared to one that only captures the geometry (or textureless scans).

For Artec 3D scanners equipped with a texture camera, Artec Studio 3D scanning software will activate the scanner’s texture flash and capture color images that it will use to texture the 3D model.

3D scan of the rear wheel from a 1971 Honda CL350 Scrambler. It was done using the Artec Eva in HD mode and Artec Studio. This 3D model has been selected as Sketchfab Staff Pick.

How do you get photorealistic textures on 3D models?

At this point, we’ve been talking about how a 3D scanner can capture geometry and color texture at the same time. This method of capturing color texture is of good quality for a majority of applications. However, for some industries such as video game or movie production for CGI, attaining a 3D model that is the closest match to the exact color and texture of the physical object is essential.

Artec Studio 3D scanning software, which powers all Artec 3D scanners, has a photogrammetry algorithm that can combine high resolution 3D mesh and photography to achieve photorealistic textures. This creates a hyper realistic, high accuracy 3D model.

Beetle 3d scan
An Artec 3D scanner can create a hyper-realistic digital replica of an object in three-dimensional form by mapping photos from digital SLR camera or an iPhone. Source: Artec 3D, Sketchfab model beetle
Capturing Color Texture with Artec 3D Scanners Path A Path B
Space Spider 3d scanner

Using the scanner’s internal camera for texture capture

DSLR camera for texture

Using an external camera like a digital SLR for texture capture

Color Texture Quality
3 stars texture
5 stars texture
Workflow
When you are doing 3D scanning with Artec 3D scanners (with the exception of Artec Point), color texture is already captured. The scanner has a camera for capturing texture. If you require the highest quality color texture, you can combine geometry data from your Artec scanner with texture data from an external camera or a smartphone. Create extra realistic, texture-perfect 3D assets for games, animation, VR/AR applications, and more.
Geometry Geometry with color texture
Shoe captured with an Artec Space Spider
Left photo: Capturing the geometry of an object
Right photo: Mapping the color texture of an object using photographs onto the the 3D model
Here’s a quick video of the workflow:

If you are interested in exploring more on this topic, Artec 3D created an in-depth video tutorial that walks you through the entire process.

Got questions on color 3D scanning?

We hope you have a better understanding of color 3D scanning after you read this article. If you have further questions, please feel free to talk to us.


Scanning challenging surfaces

Would you like to see how color 3D scanning works for your application?

We can help!

Request a Demo

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How 3D Body Scanning Is Useful for Measurement Applications In the Medical Field [With Video] https://gomeasure3d.com/article/how-3d-body-scanning-is-useful-for-measurement-applications-in-the-medical-field/ Wed, 04 Jan 2023 02:01:00 +0000 https://gomeasure3d.com/?page_id=23903 Handheld 3D scanners are widely adopted as a trusted measurement instrument for full-body scan analysis. We'll explain how the technology works and our recommendation for a 3D body scanner.

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How 3D Body Scanning Is Useful for Measurement Applications In the Medical Field

Medical applications in surface 3d body scanning

Handheld 3D scanners are now more widely adopted in the medical field as a trusted measurement instrument for full-body scan analysis. This is especially true for anthropometry, the study of measurements and proportions of the human body. I was fortunate to be given the opportunity to speak at the World Obesity and Weight Management Congress in 2022. This article is based on the presentation, Practical Uses of Optical 3D Scanner in Anthropometry.

How does a body 3D scanner work?

Our team created a video to demonstrate a 3D scanner’s ability to measure the human body and monitor changes over time (before and after a workout) with 3D surface body scanning. We used a handheld 3D scanner, the Artec Leo, for this demonstration.

Artec Leo uses structured-light 3D scanning technology and it operates like a video camera. The handheld 3D scanner captures objects in 3D with continuous scanning. Turn the device on and move around the subject for recording. The scanner provides real-time feedback on what areas have been missed and still need to be captured, making the scanning process fast and simple.

The resulting 3D model deliver an easy-to-understand visual representation of the subject, pinpointing which areas of the anatomical regions have changed, and by which degree.

  • Before Workout

    before workout scan result
  • After Workout

    after workout scan result

Here is a comparison of the bicep before and after a workout. 3D scanning technology empowers anyone to take measurements and compare them quickly. The difference between the two measurements is 0.89 inches (2.2606 cm). By capturing the entire body, you can always refer back to the file and pull data from the scan data at any time without going back to the subject to take further measurements.

Our video demonstration was a quick one to show the proof of concept of using a handheld 3D scanner for 3D body analysis. The process involves creating a benchmark measurement and then comparing it across time.

chart

By repeating these scans at regular intervals, the practitioner has the power to monitor a person’s anatomical changes of any body part captured by a 3D scanner. 3D body scanning can be applied to other applications including:

  • Weight-loss or gain
  • Measuring or analyzing body size, volume, shape, and even skin surface texture over a period of time
  • Monitoring patients over time to ensure they get the proper treatment and healing is on schedule

Why use 3D scanning for body measurement?

3D body scanning with Artec scanner
3D body scanning is a fast, easy, and reliable method of acquiring accurate measurements.
3D scanning acquires a large amount of measurement data digitally in a short amount of time.

In less than a minute, you can get a replica of the whole body with millions of surface measurement points recorded digitally. You can scan all the members of an entire sports team individually in under an hour.

The raw data is then processed into a visual representation of the person in a matter of minutes. Before and after 3D models can be easily aligned together and is particularly useful for identifications of landmarks and changes in body composition. The data is documented and any measurements can be pulled from the record at any time.

Non-contact 3D scanning is a non-invasive way of measuring the body.
Solidworks screenshot

Because a 3D scanner is a non-contact measurement device, the practitioner doesn’t need to touch the subject when taking measurements. 3D scanning is less intrusive than traditional methods such as body fat calipers, tape measurements, etc. In special cases when contact with the patient’s body is not possible (i.e. burn victims, fragile injuries), medical practitioners can use non-contact 3D scanners to capture measurements of the face and body parts without any contact with the patient. This makes the patient more comfortable when acquiring the data.

Measuring the body is different from measuring inanimate objects.

The human body consists of curvatures which is difficult to measure accurately using conventional methods. Hence, it is much more difficult to take accurate measurements when compared to inanimate objects that are straight and rigid. The 3D scanner itself is foremost a measurement device. It excels at taking surface measurements from an organic shape.

Our recommendation for a 3D body scanner

While there are other 3D scanners in the market for taking body measurements (other examples include 3D scanning booths), we recommend using a handheld 3D scanner for this application.

Artec Leo 3D Scanner

Our Recommendation: Artec Leo

The Artec Leo is a great solution for capturing measurements of the entire body as well as any body parts such as the face, hands, and feet. Ease of use and ultra-high quality output make it one of the best body 3D scanners in the market.

Anna Levadnaya sums it up best about the Artec Leo as a body scanner:

“3D scanning with the Artec Leo captures a person’s precise body measurements and dimensions in less than one minute for their entire body, resulting in a color, submillimeter-accurate 3D digital twin of their body at that exact moment in time.”

– Anna Levadnaya, MD

Artec Leo At A Glance

  • World’s first wireless and AI-driven handheld 3D scanner
  • Truly mobile 3D scanning
  • Built-in processor so no need for a computer for data capture
  • Data acquisition at 80 frames per second
  • Factory calibrated for guaranteed accuracy (up to 0.1 mm)
The Artec Leo provides a truly mobile 3D scanning experience

Unlike other handheld 3D scanners out there, Artec Leo is the first of its kind of handheld 3D scanner that is completely wireless and AI-driven. It has a powerful built-in processor for 3D capturing, a built-in touchscreen, and onboard Wi-Fi for a truly mobile experience. When you are capturing data, you are unhindered by wires while you do the entire body scan because it is battery-operated. You can move around freely as you wish.

With everything at the convenience of your fingertips, the practitioner doesn’t need to be tethered to a computer to preview the results. Everything is displayed on the built-in touchscreen, making the scanning fast and efficient.

The Artec Leo was designed with the user in mind.

From our video demonstration, it is easy to see that the Artec Leo can be operated by user of any experience level, even if they don’t have prior experience with 3D scanning. The scanner doesn’t need any calibration. All you have to do is point and shoot at the subject to take scans.

Artec Leo provides accurate measurements you can trust.
3D face scan

If you have taken measurements using a measuring tape, you know that sometimes you can get different numbers with every attempt. With a 3D scanner like the Artec Leo, you are able to get repeatable results. A 3D scanner like the Artec Leo has a 3D point accuracy of up to 0.1 mm (100 microns). You can take the circumference of any enclosed shape and take precise measurements. 3D scanning eliminates the human error you can get from manually taking measurements. Make decisions with confidence from an accurate measurement device like the Artec Leo.

Final Thoughts

Compared to other conventional measurement instruments, handheld 3D scanners allow for much greater flexibility in full body scan analysis and related applications due to faster data capture rates and data processing as well as their ability to take accurate, repeatable measurements.

The human body is unique. A 3D scanner’s ability to take body measurements easily also makes it a perfect candidate as the measurement tool of choice for creating customized products that fit exceptionally well on patients (including face masks, orthotics, hearing aids, and helmets).

Prostheses
Photo source: Artec3D and Sanitätshaus Klinz

Using a 3D scanner as a method of collecting body measurements can be extended to other medical applications including:

  • 3D printing and prosthetics
  • Reconstructive surgery
  • Dental
  • Orthopedics

If you have any questions related to using a 3D scanner for medical applications, please feel free to contact us.

3D scanning

Free Online Consultation

How Will 3D Scanning Transform The Way You Work?

We’ll demonstrate how 3D scanning works and answer any questions you have about the value this technology brings to your organization.

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Understanding 3D Scanners: Field of View Explained and How It Impacts Scan Quality https://gomeasure3d.com/blog/understanding-3d-scanners-field-of-view-explained-and-how-it-impacts-scan-quality/ https://gomeasure3d.com/blog/understanding-3d-scanners-field-of-view-explained-and-how-it-impacts-scan-quality/#respond Thu, 26 Jul 2018 15:00:17 +0000 https://gomeasure3d.com/?p=10149 We answer common questions on field of view, how it affects scan quality, and the difference between a fixed versus flexible field of view 3D scanner.

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What is the field of view for a 3D scanner?

Field of view is the observable area that a 3D scanner can capture a 3D scan from a certain distance. It is similar to how our eyes are limited to seeing a portion of the scene at one time.

The field of view of scanner

The scanner’s camera (or cameras) determine(s) the field of view. A 3D scanner that uses two cameras produces more reliable and accurate 3D measurements compared to a 3D scanner that uses only one camera.

FlexScan3D
A 3D scanner can capture a scan of what it can see at one time. In this example, the HDI Advance uses two cameras to take a single scan of one side of the shoe.
Creating a complete digital 3D model involves taking scans from all sides of the object and merging them together to create a full 3D model.

A 3D scanner has a specified field of view size (also known as scanning volume). To get the best scanning results, you should use a 3D scanner with the scanning volume size that is best suited for the size of the object you are scanning.

Field of View

Field of view diagram
This diagram illustrates the field of view of a 3D scanner. The center depth of focus is where the scan object should be placed in order to get optimal results to get the best focus and accuracy. The Z-Near is the starting point of the scanning volume. The Z-Far is the furthest distance that the scanner can scan.
Artec field of view

Artec Space Spider

Smaller Field of View

(170 – 350 mm)

Artec small field of view

Artec Eva

Larger Field of View

(400 – 1000 mm)

Artec large field of view
Using the Artec 3D scanners as an example, the Artec Space Spider has a small to medium field of view compared to an Artec Eva. This means that the Artec Space Spider is a better scanner for scanning smaller objects, while the Artec Eva is better suited for scanning medium to large objects.

What happens when I use a 3D scanner with a small field of view to scan a large object?

When you scan a large object with a 3D scanner that is optimized for scanning small objects, you would have to take more scans to create a full digital 3D model than one with a larger field of view. This can become a very labor intensive and time-consuming process. More time would be required to clean up the individual scans as well as merging of all the individual scans into a full 3D model.

The example below illustrates the difference between using a smaller field of view scanner versus a larger one for the same scanning object.

Multiple fields of view

Picking the right field of view is about finding the right balance between having enough detail and accuracy for the objects you are looking to scan, while providing decent amount of coverage so you don’t have to take too many scans for the object you are scanning.

What happens when I use a 3D scanner with a large field of view to scan an extremely small object?

If you are scanning an extremely small object with intricate details and texture information, using a 3D scanner with a large field of view will lose much of the fine geometry details and scan accuracy will not be the best.

Ring scanned using a macro scanner that is optimized to scan small objects. View it in 3D.

If you are scanning small objects, we would strongly advise using a macro 3D scanner that is designed specifically for scanning small objects.

Macro scanner scan sample
The HDI Macro 3D scanner was used to scan a small insect that is approximately 0.5 inches in size to capture the fine details of the specimen.

What’s the difference between a 3D scanner that has a flexible field of view compared to ones with a fixed field of view?

Fixed 3D Scanner = One Field of View

Most 3D scanners have fixed field of view which means that the scanner has one specific field of view that cannot be changed. A 3D scanner with a fixed field of view is ideal for users who want to scan objects similar roughly in size.

Metron E 3D scanner with fixed field of view
Metron E 3D Scanner – Example of Fixed Field of View Scanner

The advantages of fixed field of view scanners are that they are typically calibrated by the manufacturer (pre-calibrated for accuracy) so you can get started 3D scanning faster once you receive the scanner. Just take it out of the box, install the 3D scanning software, and you are ready to start scanning.

HDI Advance 3D Scanner – Example of Flexible Field of View 3D Scanner

3D scanners with a flexible field of view are capable of adjusting the camera position of the scanner to create multiple fields of view (at different times).

One 3D Scanner = Different Fields of View
All HDI Advance 3D Scanners
Have a Flexible Field of View
Field of View (FOV)

Observable area that a 3D scanner can capture a 3D scan at a certain distance.

Smaller Field of View

Scan smaller objects using inner camera slots

Wider Field of View

Scan larger objects using outer camera slots

These types of 3D scanners will have the ability to move the cameras in different positions to create different fields of view. Using the HDI Advance as an example, the scanner can create three different fields of view by moving the cameras into different preset camera positions.

The HDI Advance R3x has three diagonal field of views to choose from:

  1. 200mm
  2. 400mm
  3. 600mm

This gives users the flexibility to scan objects of different sizes while retaining scan quality—all in one 3D scanner. You will have to get different lenses to capture the best quality scans for each field of view but it’s comparably less expensive than getting three scanners to scan three different field of views.

A 3D scanner with a flexible field of view is great for those who want flexibility in a scanner with the ability to scan objects of different sizes.

There are many advantages to a 3D scanner with a flexible field of view, why wouldn’t I just get that instead of getting a fixed field of view 3D scanner?

There is no one solution that is suitable for all applications. It really depends on what you need. One scanner might be better suited for you because of your requirements.

3D scanners with a fixed field of view:
  • Can be less expensive than a flexible field of view scanner if budget is a concern.
  • Are great for 3D scanning novices. Flexible field of view scanners are performance scanners that require more training to learn how to get the best scans compared to using a fixed field of view scanner.
  • Can be pre-calibrated so it doesn’t require calibration every time you change the field of view.
Side-by-Side Comparison of Each Type of System:
Field of View Fixed Flexible
Example Metron E 3D Scanner HDI Advance 3D Scanner
System Standard Performance
Calibration Pre-calibrated User calibrates the scanner every time the scanning volume changes
Ideal for people Who just started 3D scanning With middle to advanced 3D scanning skills
Advantages
  • Easy to use
  • Plug and play
  • Professional entry-level systems that are affordable (i.e. Metron E)
  • One system has multiple fields of view to scan objects of different sizes
  • Pushes the limits of 3D scanning, in terms of performance

Got questions on field of view you would like to ask? Please tell us in the comments section.
Metron E
Affordable 3D Scanner: Meet Metron E →

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Common Questions on Portable CMMs https://gomeasure3d.com/blog/common-questions-portable-cmms/ https://gomeasure3d.com/blog/common-questions-portable-cmms/#comments Tue, 07 Nov 2017 07:36:26 +0000 https://gomeasure3d.com/?p=9014 We'll answer basic questions related to portable CMMs, including how they work and what applications are most suitable for using this measurement device.

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Kreon portable CMM
  1. How does a Portable CMM work?

    Portable CMM is a device for collecting measurements off the surface geometry of an object. When we’re talking about portable CMMs usually what comes to mind is the type that uses a measuring arm, also called an articulating arm.

    Each time you touch the surface of an object with the probe it collects one measurement point, or a 3D coordinate (XYZ). It’s considered a contact measurement system because the device needs to touch the scan target in order to obtain a measurement.

  2. Why do I need one?
    Quality Inspection

    Portable CMM is a trusted measurement tool to help reduce product defects in the manufacturing process in order to maintain strict quality standards.

    Hand tools such as calipers and micrometers are restricted to taking simple measurements for basic parts such as distance from point A to B. Portable CMMs, on the other hand, are a flexible measurement tool that provides more information than these types of tools. They make the quality control process much more efficient while obtaining better accuracy.

    Portable CMMs enable computer-aided inspection of manufactured parts by taking certain measurements and comparing it to a golden standard, the CAD model, to determine if the part meets quality standards.

    Product Development

    Portable CMMs are used in reverse engineering applications to help speed up the product development process. Instead of designing from a blank slate, 3D scanning captures the design intent of complex geometry that is hard to measure in any other way. This information is then used as a basis for design.

    Reverse engineering using a portable CMM is great for:

    • Building components that integrate perfectly with existing products
    • Repairing worn or broken parts
    • Creating models from parts with non-existing CAD
    • Using existing scan data to improve the design of an existing product

    Here is a video demonstration on how to reverse engineer a throttle body with a portable CMM using Point2CAD reverse engineering add-in for SOLIDWORKS:

    Landmark Studies

    Portable CMMs are a flexible solution that is proven valuable in academic research. Their ability to collect 3D measurements easily provide an efficient method for data collection and statistical analysis.

    Claire Terhune, an assistant professor at the University of Arkansas, has been using the MicroScribe portable CMM for more than 10 years, particularly for landmark studies using 3D geometric morphometric techniques. Geometric morphometrics is a comparative study of complex biological structures by referencing a set of common anatomical landmark points (digital 3D coordinates) across different specimens.

    “The MicroScribe 3D digitizer is a portable solution I can easily take with me on my travels. I can quickly set it up at the museum I’m visiting and capture the X,Y, Z landmarks (3D geometric morphometric data) I need just by touching the skull with the articulating arm,” says Terhune.

    With the data collected, she compares these coordinates across different specimens to see how they relate to or differ from one another.

    You can learn more about how she uses the equipment for her research in the case study Advancing Anthropological Research with 3D Scanning

  3. What are the advantages of using portable CMM compared to traditional CMM?
    Fixed vs Portable CMM
    Traditional1 (fixed) CMMs versus portable CMMs

    Traditional coordinate measurement machines (CMMs) are known to be highly accurate, but they are big, fixed, and need to be used in a controlled environment. They are programmable to take certain measurements repeatedly. Prices can range from about $30,000 to $1 million2 which can be an expensive investment.

    While traditional CMMs are very accurate for taking measurements, they aren’t as flexible when you want a portable, less expensive solution.

    Portable CMMs do just that.

    Compared to traditional CMMs, they are:

    • Less expensive: You can get one for about $10,000.
    • Portable: You can bring a portable CMM to the production line or shop floor due to its light weight (not restricted to a controlled environment).
    • Flexible: Ability to take 3D measurements from different types of parts. Traditional CMMs are also strictly used for quality inspection, whereas portable CMMs can be used for other applications including reverse engineering, rapid prototyping, and scientific studies.
    • Easier to operate: Operator has more control of the machine but requires manual operation.
  4. What are the differences between a portable CMMs and 3D scanners (such as laser or structured-light)?

    Although they both do the same thing (digitize objects), they are useful in their own ways. If you need to capture a few quick measurements, a portable CMM is good because it does the job fast. Simply by touching the object, you can get the measurement points you need. Whereas, a 3D scanner takes a snapshot of the object, which captures more data points (one scan contains over a million 3D measurement points taken in about one second). If you need just a few measurements, a 3D scanner can be an overkill and more time-consuming to do it that way and it would be best to use a portable CMM instead.

    3D scanners are a non-contact measurement tool, whereas a portable CMM requires a touch probe that gets in contact with the object in order to take a measurement. Sometimes, when the object cannot be touched because it’s fragile, it’s best to use a 3D scanner.

    organic shape
    prismatic shape
    3D scanners are great for capturing 3D measurements of complex, organic shape (left) while a portable CMM is fast at capturing 3D measurements of objects with prismatic shape with straight edges or lines (right).

    Each device has its own strengths for scanning certain types of objects. It’s best to know the objects’ features you are planning to scan to determine which device would work best for your application. Portable CMMs are effective for scanning objects that have hard edges such as sheet metals, as well as dark, shiny, or reflective parts without part preparation as well as holes and undercuts. However, using contact measurement devices to measure parts with complex organic shapes can be a challenge. 3D scanners are great at measuring extremely complex surfaces and organic shapes in addition to mechanical parts.

    To learn more about the differences of using a portable CMM versus a 3D scanner for reverse engineering applications, please read the article, Examining the Reverse Engineering Workflow from 3D Scan to CAD.

  5. What do I need to consider when buying a portable CMM?

    There are various brands and models of portable CMMs out in the market with different specifications. You should ask yourself three main questions during your evaluation process to see which one is right for you.

    1. How accurately do you need to measure your part?

      Get a system where you are comfortable with the accuracy you are looking for. Knowing your accuracy requirement is important because you don’t want to overspend on getting higher accuracy than you need. Portable CMMs with high accuracy tend to cost more.

    2. What are you measuring?

      Portable CMMs are classified by its working volume, from 2 feet to 18 feet. Be sure to select a portable CMM that will be able to scan the size of your part.

      Understanding the complexity of the part and whether the device is able to scan your object ensures your equipment investment pays off post-purchase. If you have any questions or would like to get a sample scan done, ask your solutions provider and they would be able to help you figure it out.

    3. What are you trying to achieve?

      Are you using it for inspection or reverse engineering applications? Portable CMMs come with host software that controls the scanner to acquire 3D scan data. Depending on the manufacturer, some devices even come with application specific software (ie. metrology software) so you don’t need to get additional software.

      There are third party softwares that help you take the acquired scan data for use in specific applications. Knowing what you want to do with the data will help determine what additional software you need.

  6. What are the different types of probe tips and what are their uses?

    Probes can come in many shapes and sizes. Different probe tips are meant to help measure certain types of objects. Small point probes measure and give access to tight locations while larger probes can be used to average out surface deviation such as castings.

    For example, a 1/8″ ball tip probe would be used to get inside of a small pocket for measurement. A 1/2″ ball tip probe would be used to measure rough cast parts to average the surface texture. A point probe would be used in software that does not have probe compensation.

    one eighth ball tip
    ⅛” ball tip
    half inch ball tip
    ½” ball tip
    point tip
    point tip
  7. Does a portable CMM need to be re-certified all the time?

    No, not unless you are having problems in terms of getting optimal accuracy numbers from your portable CMM. However, if your company maintains ISO standards to uphold the highest quality standards it is best to have it re-certified annually for best performance. Depending on the device or model, you might need to ship it back to the manufacturer for certification or you might be able to do it yourself. Ask your solutions provider before purchasing if this is an important factor for you.

Do you have any questions about portable CMMs? Please let us know in the comments section.

– – –

Reference:
  1. Photo source: Traditional CMM, from Wikipedia
  2. Engineering.com: 3 Tips for Choosing the Best Coordinate Measuring Machine for Your Quality Process

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Automating the 3D Scanning Process and Why You Need It https://gomeasure3d.com/blog/automating-3d-scanning-process-need/ https://gomeasure3d.com/blog/automating-3d-scanning-process-need/#respond Thu, 28 Sep 2017 15:00:41 +0000 https://gomeasure3d.com/?p=8910 Explaining the different ways to automate the 3D scanning process, versus doing it manually, and the applications most suitable for each method.

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When you’re looking to purchase a 3D scanner, one of the options you should consider is to see if you want to automate the 3D scanning process. This way, much of the work doesn’t need to be done manually.

Normally, when you are using a 3D scanner to capture a physical object into digital form on the computer, you need to first capture individual 3D scans of all sides of the object. Then you need to post-process the scan data. This includes clean up by eliminating any outlying scan data points and noises, as well as aligning and merging the individual scans together.

The process is similar to sewing, where individual scans need to be stitched together in order to make a complete digital 3D model of the object.

3D Scanning Process:

dental scanning
Data Acquisition

The 3D scanner collects 3D measurements of physical objects.

processing scan data
Post-Processing

Cleanup, align, and merge individual scans together inside the software.

Final Model

The final output is a complete digital 3D model.

Why automate 3D scanning?

Automating 3D scanning is a time saver.

If you automate the 3D scanning process, it takes a fraction of the time to have the finished output than if you did it manually. One of the main benefits to automation is that it minimizes much of the tedious work of performing the scanning procedures by hand, especially if you have many objects to scan. Sometimes doing repetitive work can get boring.

Automation makes 3D scanning much easier.

You just need to press a few buttons and the steps in the workflow are automated. The best thing is that you don’t need a lot to training since it doesn’t require as much manpower. Some methods of automation can even fully automate the entire process. It’s simple to operate once it’s setup.

Automating 3D scanning saves money.

Much of the manpower is automated so you can work on other important tasks or you don’t need allocate as much human resources to operate the system. You might pay more now but you will see cost savingss over the long run.

What are the different ways to automate 3D scanning?

  1. Accessorize with a motorized rotary table

    Desktop rotary tables are the most popular for scanning small to medium sized parts.

    When a rotary table accessory is used in conjunction with a scanner, it revolves the stationary object so the user doesn’t need to spin the object. The rotary table stops at predetermined intervals. Then the scanner is triggered to take one scan of the object at a certain angle each time. This continues until all scans are captured. Alignment and merging of individual scans are also automated so the final output you get is a completed digitized version of the physical object.

    The following video demonstrates the process of using a rotary table for 3D scanning:

    Using a rotary table is ideal when you are scanning similar types of objects in volume to save time. In terms of time savings, a 30 minute scan job can be accomplished in about 2 minutes using a rotary table.

    Some of the applications that are great for using the rotary table include:

    Ecommerce

    Online shopping is becoming increasingly important as consumers prefer to shop this way. Product display entices consumers to buy. Using a 3D scanner, you can convert physical objects into digital form to display products online in 360 degrees.

    3D Scanning Artifacts and Fossils

    For archeological digs and research expeditions, especially in remote locations, there is a tremendous amount of items to scan in a short period of time.

    Scanning hyena skull
    3D scan of hyena skull

    Clare Terhune, assistant professor in the Department of Anthropology at the University of Arkansas, uses her 3D scanner with a rotary table when she’s traveling on expeditions. Using a rotary table can greatly speed up the scanning process.

    You can learn more about how Claire uses 3D scanning to further her research in the case study: Advancing Anthropological Research with 3D Scanning

  2. Using Multiple Scan Heads

    Another way of automating 3D scanning is to use multiple capturing units, or scan heads, using one computer to power them all. The principle behind this method of automating 3D scanning is to: 1) trigger a series of scanners to create a large field of view pretty quickly 2) capture all angles of the object at one time without moving the scanner or the object.

    You can invest in a high-end scanners that can take an entire field of view of the object, or you can use an array of scanners to accomplish the same thing — at a much reduced cost.

    This is especially useful for scanning large objects (sculptures, large mechanical parts like a door panel, or even scanning people when you want to capture the face and body all at one time) and to do alignment and merging of scans automatically.

    Here is a video that explains the process:

  3. Robotic Scanning

    Automating the 3D scanning process using a robotic arm provides a standardized routine that offers consistent results. When multiple people are doing the scanning, especially for applications that require a high level of accuracy and consistency, it can be prone to measurement variations. Everyone scans in a slightly different way, even if the procedures are standardized. Robotic scanning minimizes human error. Additional benefits to this method of automation helps save time and reduces costs.

    Manufacturing quality products is a reflection of a company’s reputation. Robotic scanning is typically used in factory automation where high repeatability and accuracy of measurements are a must. Robotic arms can be programmed to move parts over and over again in a certain way with exact precision.

    The computer can be programmed to take scans of the manufactured part and compare it to the CAD file to check for product defects. If the deviation of the measurement is outside the accepted tolerance, the part is rejected. Using specialized 3D inspection software, you also generate comprehensive inspection reports for further analysis.

    Here is a video demonstration of a fully automated robotic 3D inspection cell in an automotive manufacturing facility:

  4. Create a custom 3D scanner for dedicated applications

    With a specialized scanner, you can customize the system exactly to your needs in terms of how it captures the 3D scan data, how the data is processed, and how the results are displayed.

    For medical practitioners, such as a podiatrist, they need to prescribe custom orthotics to many of their patients on a daily basis. The traditional method involves creating a physical cast of the patient’s feet and shipping them to the orthotics manufacturer, which can be a labor intensive process.

    3D scanning provides a fast and effective way to capture 3D measurements of their patient’s feet. A dedicated 3D foot scanner provides the technology to scan the patient’s foot in seconds to create a digital reproduction in the form of a 3D model. Once the foot has been scanned, the attending practitioner uses a custom user interface to view the foot scan in a number of desired casting positions, enter the corresponding orthotic prescription, and instantly send the file electronically to the manufacturing facility for production.

    custom 3d foot scanner

    This process allows for reduced in office casting supplies, and outgoing freight charges, combined with faster turnaround times.

    Creating a dedicated scanner does require a large investment. All the hardware components of the rig and software need to be customized for a particular application. It’s worth it if you want to implement a number of scanners in volume across various locations to maximize operating efficiency.

Which option is right for me?

There are benefits to each of the methods of automating the 3D scanning process.

This diagram quickly summarizes the benefits of each method to help you select the best option based on your needs and budget:

Method Cost Automation Best for:
Motorized Rotary Table $ Partial automation: Someone needs to put the part on the rotary table
  • Scanning similar objects in volume
  • Small to medium sized objects
Scanning in an Array $$ Partial automation: Someone needs to put the part in position for scanning
  • Use one computer to control a series of scan heads
  • Scan large objects fast by creating a wider field of view
Robotic Scanning $$$$ Full automation
  • Require high accuracy and repeatability in scan results
  • Ideal for quality inspection applications
Customized Scanner $$-$$$$ Partial or Full automation
  • Scanning in volume of the same object to help with efficiency
  • Dedicated scanner tasked for a specific purpose, exactly to your needs
  • Great for replicating the scanner in volume for use in different locations

Got more questions about automated 3D scanning? Please use the comment section.

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]]> https://gomeasure3d.com/blog/automating-3d-scanning-process-need/feed/ 0 How Structured-Light 3D Scanners Work (With Video Demonstrations) https://gomeasure3d.com/blog/how-structured-light-3d-scanners-work-video/ https://gomeasure3d.com/blog/how-structured-light-3d-scanners-work-video/#respond Tue, 30 May 2017 15:00:39 +0000 https://gomeasure3d.com/?p=8239 3D scanners might look like complex technology. Here we'll explore the mechanics of how a structured-light 3D scanner works.

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3D scanners might look like complex technology. But if you think about it, they’re pretty much devices that create digital replicas of physical objects with three-dimensional qualities, or the addition of depth information. It’s similar to using cameras to take photos of the real world into 2D images.

  Output Dimensions
Camera

Takes photos of the real world in 2D

Photograph
photograph
2D
XYZ coordinates
3D Scanner

Takes 3D scans of real world objects in 3D

3D Digital Model
computer
3D
XYZ coordinates
Physical Object
3D Digital Model
A 3D scanner transforms an object from the physical world (left) to 3D digital form (right).

Components of a Structured Light 3D Scanner

A structured-light 3D scanner is a type of 3D scanner that uses the following components to capture 3D scans:

  1. Hardware: The capturing unit is the physical part of the scanner that consists of a projection light source (white light, blue LED light) and typically 1 or 2 camera(s)
  2. Software: 3D scanning software that powers the scanner. The software acts as the control center that runs the entire operation, from capturing 3D data from the physical object to cleaning up the output, the 3D model. The model contains valuable information such as measurements, surface characteristics, and geometry information about the physical object. They are useful for applications such as reverse engineering, product inspection, computer graphics for creating CGI in gaming and movies, or 3D visualization for the purpose of viewing.

The Mechanics of Structured-Light 3D Scanning

To begin the scanning process, the capturing unit projects a series of reference patterns onto the part’s surface.

Here is a graphical representation of what’s happening inside a structured-light 3D scanner:

Structured light 3D scanner diagram
  1. The light source projects a series of patterns onto the object, usually in the form of multiple parallel beams.
  2. The patterns become distorted when projected onto the object’s surface. The scanner captures these images using the cameras.
  3. The cameras relay the images back to the 3D scanning software. It uses these images and the software’s algorithms, using the method of triangulation, to calculate the object’s depth and surface information. The final output from the 3D scanner is a digital 3D representation on the computer in the form of a 3D scan.

A structured-light 3D scanner can only take 3D images of what the cameras can see. Therefore, in order to create a digital model of the entire object, scans have to be taken at multiple angles. The scans are then cleaned up, merged, and stitched together (known as post-processing) in order to create a complete digital model.

Video Demonstrations

Structured-light 3D scanners can come in the form of a stationary 3D scanner or handheld 3D scanner.

How Structured-Light Stationary 3D Scanners Work

Stationary 3D scanners require the capturing unit to be mounted on a stable surface. If you want to speed up the scanning process, an automated rotary turntable can be added to automate the 3D scanning process so the user doesn’t have to manually turn the object to scan the object from all sides.

The Basics of 3D Scanning with a Stationary 3D Scanner

Output: 3D Model of a Running Shoe in 360°

3D Scanning with a Rotary Table for Automated 3D Scanning

Output: 3D Model of a Mine Ball in 360°

How Structured-Light Handheld 3D Scanners Work

Compared to a stationary 3D scanner, the handheld 3D scanner is more portable. It works similar to a video camera. The user holds onto the capturing unit while collecting data from the physical object.

The Basics of 3D Scanning with a Handheld 3D Scanner

Output: 3D Model of a Drill in 360°

3D Scanning with More Complicated Objects (ie. flat, difficult to sit)

Output: 3D Model of Spear Head in 360°

To better understand the differences between a stationary 3D scanner compared to a handheld 3D scanner, make sure to check out our post on Choosing Between a Stationary or Handheld 3D Scanner.

3D Scanning in Color

If the structured-light scanner uses color camera(s) instead of ones that only capture black and white images, it will be able to capture color and texture of that object as well. For many applications, capturing color is not overly important if you just need the digital models for measurement purposes, as in the case of computer-aided inspection.

Color is important for applications where you want to accurately represent the object in 3D digital form as in the case for selling products on an ecommerce website, creating graphic imaging for gaming or movies, or for digitizing artifacts for viewing, documentation, and sharing.

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Budget Saving Tip

If you are on a tight budget and color isn’t essential, you can typically save money by getting a 3D scanner that captures monochrome 3D models instead of color.

Black and White Digital 3D Model of a Dental Mold

Color Digital 3D Model of a Face Scan

Is a Structured-light 3D Scanner Right For Me?

The main advantages to using a structured-light 3D scanner are it can capture objects into complete digital 3D models with full detail at very fast speed. A 3D scan can be captured in about 1 second, while a full 3D model of a basic object can be captured in just a few minutes in high-resolution (million(s) of polygons) with extreme accuracy (sub-micron).

Due to its fast scanning speed, structured-light 3D scanners are especially great for projects where you have to scan objects in volume or if you have to scan people. People have a tendency to move due to breathing so the faster a scanner can capture a scan, the better the scan results will be.

Structured-light 3D scanners are great for capturing objects in full digital 3D model from approximately 1 cm to 3 meters in size.

Screw
Small

Screws

People
Medium

Faces/People

Sculpture
Large

Sculptures/Monuments

Structured-light 3D scanners are ideal for scanning objects with:

  • Complex surfaces that are difficult to measure with hand tools (calipers, gauges) or other measurement tools
  • Highly detailed organic, freeform surfaces
  • Surfaces that cannot be touched as structured-light 3D scanners are non-contact measurement devices

Structured-light 3D scanners are useful for a range of industry applications. Read our industry applications guide to learn more about the different uses.

The best way to determine if a structured-light 3D scanner is right for you is to consult a reputable 3D scanner provider who can answer any of the questions you have. They will be able to assess your application and determine which scanner is most suitable for your needs. They can also give you use cases similar to your application to demonstrate the capabilities of the scanner or provide test scans for you. This will ensure you get what you need upon purchase.

Return on Investment

The post How Structured-Light 3D Scanners Work (With Video Demonstrations) appeared first on GoMeasure3D.

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