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Proceedings Paper

New fast high-resolution 3D imaging system with color structured light
Author(s): Yuan-Hao Yeh; I-Cheng Chang; Ching-Long Huang; Wen-Jean Hsueh; Hsien-Chang Lin; Chia-Chen Chen
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Paper Abstract

This paper proposes a new fast and high-resolution color structured-light-based 3D imaging system. Unlike the expensive laser-based 3D imaging system, our hand-held system contains a commercial digital camera and two special designed projectors, the cost is much lower. Only two images are necessarily to reconstruct the 3D model with textures. One projector illuminates white light for texture imaging, the other projector projects special designed pattern for 3D information imaging. 384 vertical color bars (comprised of six primary colors) with special coding are projected onto the target, our proposed algorithm detects edges between any two successive color bars. From decoding algorithm the correct locations of edges are derived. Then the calibration algorithm finds accurate positions of edges in 3D space with triangulation. Color bars can be seriously distorted by colorful objects. Edges and colors of the object may cause edges of color bars to be broken segments. And some bars even show very different colors. A curve reconstruction algorithm is developed to reconstruct the complete edge from residual edge segments. And a robust color decoding algorithm can recover the correct color sequence even when many color bars are seriously distorted. The suggested approach has been implemented and the preliminary results show the resolution can compete with laser 3D imaging systems and -0.2~+0.2 mm accuracy is achieved.

Paper Details

Date Published: 30 August 2002
PDF: 10 pages
Proc. SPIE 4925, Electronic Imaging and Multimedia Technology III, (30 August 2002); doi: 10.1117/12.481565
Show Author Affiliations
Yuan-Hao Yeh, Industrial Technology Research Institute (Taiwan)
I-Cheng Chang, Industrial Technology Research Institute (Taiwan)
Ching-Long Huang, Industrial Technology Research Institute (Taiwan)
Wen-Jean Hsueh, Industrial Technology Research Institute (Taiwan)
Hsien-Chang Lin, Industrial Technology Research Institute (Taiwan)
Chia-Chen Chen, Industrial Technology Research Institute (Taiwan)

Published in SPIE Proceedings Vol. 4925:
Electronic Imaging and Multimedia Technology III
LiWei Zhou; Chung-Sheng Li; Yoshiji Suzuki, Editor(s)

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