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Optical Engineering

Color grating projection moire with time-integral fringe capturing for high-speed 3-D imaging
Author(s): Moon-sik Jeong; Seung-Woo Kim
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Paper Abstract

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.

Paper Details

Date Published: 1 August 2002
PDF: 6 pages
Opt. Eng. 41(8) doi: 10.1117/1.1487855
Published in: Optical Engineering Volume 41, Issue 8
Show Author Affiliations
Moon-sik Jeong, Korea Advanced Institute of Science and Technology (South Korea)
Seung-Woo Kim, Korea Advanced Institute of Science and Technology (South Korea)

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