3D Scanning: Case Studies in Scanning Humans to Create Customized Products


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Thomas Tong, President of 3D3 Solutions, presented at Rapid 2009 on the topic "Case Studies in Scanning Humans to Create Customized Products".

3D scanning technology is moving from labs and factories into the lives of everyday people. This unique look at 3D scanning applications showcases the pitfalls and benefits of bringing this technology to the mainstream. 3D3 Solutions has created a number of specialized 3D scanners and has learned some tough lessons in making the technology usable by the general public. As a specialized 3D scanner manufacturer we also discuss some of the trends 3D scanning technology is creating in new and unique markets in customized medical applications, personal products, and clothing.

3D3 Solutions is a research and development company that creates 3D scanning and visualization technologies. For more information, visit http://www.3d3solutions.com.

Published in: Technology, Art & Photos
  • Dear guest1b880a4a,

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  • Thanks for the slides, but can i have more insite into this field? iam a digital Image student at University Putra Ma;laysia
    Thak you

    <b>[Comment posted from</b> http://www.3d3solutions.com/gallery/presentation.php]
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3D Scanning: Case Studies in Scanning Humans to Create Customized Products

  1. 1. Case Studies in Scanning Humans to Create Customized Products Thomas Tong, 3D3 Solutions
  2. 2. Overview <ul><li>3D3 Solutions has created 3D scanners that scan humans to create customized products </li></ul><ul><li>Lessons learned for making 3D scanning usable by the general public </li></ul><ul><li>3 different cases - Feet, Faces and Joints </li></ul>
  3. 3. Goal <ul><li>Best practices for 3D scanning technology to solve human measurement problems </li></ul><ul><li>Understand value proposition of moving 3d scanning from back-end systems </li></ul><ul><li>Discuss risks and pitfalls </li></ul><ul><li>Tackle production issues </li></ul>
  4. 4. Key Issues 1 <ul><li>Scanning humans has different requirements than mechanical parts </li></ul><ul><li>Movement </li></ul><ul><li>3D scanning working outside of controlled settings </li></ul><ul><li>Used by untrained and non-technical operators </li></ul><ul><li>Scanning speed and robustness </li></ul>
  5. 5. Key Issues 2 <ul><li>The cost factor is challenging </li></ul><ul><ul><li>Competition is traditional tools </li></ul></ul><ul><ul><li>better, faster, or cheaper </li></ul></ul><ul><ul><li>Digital solutions has different trade offs versus traditional tools </li></ul></ul><ul><li>Overcoming social fears </li></ul>
  6. 6. Methodology <ul><li>Custom build 3D scanners for each particular application </li></ul><ul><li>Scanners prototyped and tested with end-users every step of the way </li></ul><ul><li>Adapt available technologies, mix and match old and new techniques </li></ul><ul><li>Modify the parameters of the problem </li></ul>
  7. 7. Case Study 1 – Feet <ul><li>Semi-custom to fully custom orthotics </li></ul><ul><li>Scanning feet </li></ul><ul><ul><li>Plaster cast and foam replacement </li></ul></ul><ul><li>Simple value proposition. Plaster and foam requires more time and physical handling costs </li></ul><ul><ul><li>Digital scanning is simple, clean and fast </li></ul></ul>
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  10. 10. Case Study 1 – Lessons Learned <ul><li>Scans asked to be highly reduced </li></ul><ul><ul><li>High data sets = more storage, processing, and transmission time </li></ul></ul><ul><li>Less is more. The right measurements, not more measurements </li></ul><ul><li>Scans data are used to look up into a model library, additional data is not needed </li></ul><ul><li>Accuracy requirements are low. Ease of use requirements are high </li></ul><ul><li>Time is money. Faster is better </li></ul>
  11. 11. Case Study 2 : Faces <ul><li>Faces </li></ul><ul><ul><li>Medical </li></ul></ul><ul><ul><ul><li>Cosmetic surgery </li></ul></ul></ul><ul><ul><ul><li>Burn </li></ul></ul></ul><ul><ul><li>Visual effects </li></ul></ul><ul><ul><ul><li>Digital Avatars </li></ul></ul></ul><ul><ul><ul><li>3D Models </li></ul></ul></ul>
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  13. 13. Case Study 2: Lessons Learned <ul><li>There will be holes in a single scan </li></ul><ul><ul><li>Solutions: </li></ul></ul><ul><ul><ul><li>Automatic - hole filling </li></ul></ul></ul><ul><ul><ul><li>Use replacement parts (No ears? No problem) </li></ul></ul></ul><ul><ul><ul><li>More cameras or scanners </li></ul></ul></ul><ul><li>Glasses can be an issue </li></ul><ul><li>Hair in general does not scan that well </li></ul><ul><ul><li>Even if data is captured, a polygon mesh represents hair poorly </li></ul></ul><ul><ul><li>In visual effects or games you would replace with a hair simulation </li></ul></ul><ul><ul><li>For manufacturing, mesh may be okay </li></ul></ul>
  14. 14. Case Study 2: Lessons Learned <ul><li>White light and laser safety </li></ul><ul><ul><ul><ul><li>Rated to be safe </li></ul></ul></ul></ul><ul><ul><ul><ul><li>People are very skeptical, especially athletes </li></ul></ul></ul></ul><ul><li>Faces are the hardest thing to keep “still” </li></ul><ul><li>Different industries </li></ul><ul><ul><li>Visual effects, artists want to do lots of editing, can deal with lots of polygons </li></ul></ul><ul><ul><li>For manufacturing, take the face or head scan and blend it in to a pre-existing model for less cleanup </li></ul></ul>
  15. 15. Case Study 3 – Joints <ul><li>Bracing Products </li></ul><ul><ul><li>Knees </li></ul></ul><ul><ul><li>Elbows </li></ul></ul><ul><ul><li>Ankles </li></ul></ul><ul><li>Data acquisition from multiple directions </li></ul>
  16. 16. Case Study 3 – Lessons Learned <ul><li>A fast 360 may requires multiple cameras </li></ul><ul><ul><li>Systems that sweep around the joint will work </li></ul></ul><ul><ul><li>While humans are not rigid, general shape remains unchanged </li></ul></ul><ul><li>Automated alignment can be challenging </li></ul>
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  18. 18. End User Issues <ul><li>People don’t know what to expect </li></ul><ul><li>There is significant reluctance and fear </li></ul><ul><ul><li>People worry about being digitally “copied” especially women </li></ul></ul><ul><ul><li>Social fears to the 3D scanning like early photographers </li></ul></ul><ul><li>Everyone moves all the time </li></ul><ul><ul><li>Faster, higher cost, higher quality scanners </li></ul></ul><ul><ul><li>Support the persons (Wall, chairs) </li></ul></ul><ul><ul><li>Live with the noise </li></ul></ul>
  19. 19. Lessons Learned <ul><li>Plan your scanner output to match required manufacturing input </li></ul><ul><li>Fully automated solutions are difficult, but worth the effort </li></ul><ul><li>Robustness is critical </li></ul><ul><li>100% coverage near impossible </li></ul><ul><li>New methods will rarely be “cheaper” than old methods. </li></ul><ul><ul><li>The ability to digitally measure, analyze and deliver data is valuable </li></ul></ul>
  20. 20. Easy Wins <ul><li>3D scanning is “cool”’ </li></ul><ul><li>Value proposition is straight forward </li></ul><ul><ul><li>Existing solution is error prone, slow, difficult, and requires shipping </li></ul></ul><ul><ul><li>Digital solution is fast, accurate and can be digitally delivered </li></ul></ul><ul><li>Accuracy requirements are orders of magnitude lower than manufacturing </li></ul>
  21. 21. Future Steps <ul><li>Making simple and robust “1-click” scanning systems </li></ul><ul><li>Look for end to end value, not just 3D scanning </li></ul><ul><li>Develop digital measurement, analysis and information delivery platforms. </li></ul><ul><li>Get more correct measurements more easily at a lower cost </li></ul>
  22. 22. Thank you! Thomas Tong, 3D3 Solutions Email: [email_address] Website: www.3d3solutions.com