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Proceedings Paper

Color-encoded digital fringe projection technique for high-speed 3-D shape measurement: color coupling and imbalance compensation
Author(s): Jiahui Pan; Peisen S. Huang; Fu-Pen Chiang
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Paper Abstract

Color-encoded digital fringe projection is a recently developed technique for high-speed 3-D shape measurement. In this technique, only a single image is needed for reconstructing the 3-D surface shape of an object. Thus the measurement speed can be increased up to the frame rate of the camera. However, previous experimental results showed that the measurement accuracy of this technique was lower than that of the traditional grayscale technique due largely to the color coupling and imbalance problems. In this research, we propose an improved system with a high brightness LCD projector and a 3-CCD video camera to address these problems. A Look-Up-Table (LUT) method is developed to compensate for errors caused by color coupling and imbalance. In addition, a nonlinearity compensation method is used to further reduce measurement errors. Experimental results showed that the measurement error was significantly reduced.

Paper Details

Date Published: 26 February 2004
PDF: 8 pages
Proc. SPIE 5265, Two- and Three-Dimensional Vision Systems for Inspection, Control, and Metrology, (26 February 2004); doi: 10.1117/12.527760
Show Author Affiliations
Jiahui Pan, SUNY/Stony Brook (United States)
Peisen S. Huang, SUNY/Stony Brook (United States)
Fu-Pen Chiang, SUNY/Stony Brook (United States)


Published in SPIE Proceedings Vol. 5265:
Two- and Three-Dimensional Vision Systems for Inspection, Control, and Metrology
Bruce G. Batchelor; Heinz Hugli, Editor(s)

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