Color grating projection moire with time-integral fringe capturing for high-speed 3-D imaging

Moon-sik Jeong; Seung-Woo Kim

doi:10.1117/1.1487855

1 August 2002 Color grating projection moire with time-integral fringe capturing for high-speed 3-D imaging

Moon-sik Jeong, Seung-Woo Kim

Optical Engineering, Vol. 41, Issue 8, (August 2002). https://doi.org/10.1117/1.1487855

We present a high-speed moiré method of color grating projection, which performs phase-shifting 3-D contouring with only a single operation of fringe capturing. Three red, green, and blue pairs of projection and viewing gratings are fabricated on a single glass plate with predetermined lateral offsets. The glass plate is translated along with the color gratings during measurement at a fast speed, so that a color CCD camera simultaneously monitors three separate patterns of moiré fringes with 2?/3 phase offset. This time-integral fringe capturing enables us to obtain high-quality moire fringes with the line images of the original viewing gratings inherently removed, which leads to better measurement accuracy with less computational burden of fringe processing.

©(2002) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Moon-sik Jeong and Seung-Woo Kim "Color grating projection moire with time-integral fringe capturing for high-speed 3-D imaging," Optical Engineering 41(8), (1 August 2002). https://doi.org/10.1117/1.1487855

Published: 1 August 2002

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