Novel fully integrated computer system for custom footwear: from 3D digitization to manufacturing

Pascal-Simon Houle; Eric Beaulieu; Zhaoheng Liu

doi:10.1117/12.302458

6 March 1998 Novel fully integrated computer system for custom footwear: from 3D digitization to manufacturing

Pascal-Simon Houle, Eric Beaulieu, Zhaoheng Liu

Proceedings Volume 3313, Three-Dimensional Image Capture and Applications; (1998) https://doi.org/10.1117/12.302458
Event: Photonics West '98 Electronic Imaging, 1998, San Jose, CA, United States

Abstract

This paper presents a recently developed custom footwear system, which integrates 3D digitization technology, range image fusion techniques, a 3D graphical environment for corrective actions, parametric curved surface representation and computer numerical control (CNC) machining. In this system, a support designed with the help of biomechanics experts can stabilize the foot in a correct and neutral position. The foot surface is then captured by a 3D camera using active ranging techniques. A software using a library of documented foot pathologies suggests corrective actions on the orthosis. Three kinds of deformations can be achieved. The first method uses previously scanned pad surfaces by our 3D scanner, which can be easily mapped onto the foot surface to locally modify the surface shape. The second kind of deformation is construction of B-Spline surfaces by manipulating control points and modifying knot vectors in a 3D graphical environment to build desired deformation. The last one is a manual electronic 3D pen, which may be of different shapes and sizes, and has an adjustable 'pressure' information. All applied deformations should respect a G1 surface continuity, which ensure that the surface can accustom a foot. Once the surface modification process is completed, the resulting data is sent to manufacturing software for CNC machining.

Citation Download Citation

Pascal-Simon Houle, Eric Beaulieu, and Zhaoheng Liu "Novel fully integrated computer system for custom footwear: from 3D digitization to manufacturing", Proc. SPIE 3313, Three-Dimensional Image Capture and Applications, (6 March 1998); https://doi.org/10.1117/12.302458

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