2 March 2012 Projection moiré profilometry with high-dynamic range image
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Abstract
As a type of optical measuring apparatus, the charge-coupled diode (CCD) camera provides the capability of increasing the speed of measurement by inspecting an area with only one shot. However, the CCD camera's high-variation range of reflectivity presents an exceptional challenge for the optical measurement established on the surface. We present a method that could enable one to acquire an image with a high-dynamic range in one shot without any reduction in spatial resolution. Because of the sufficient signal-to-noise ratio, the method presented could perform the robustness of the phase-retrieving algorithm, and the surface topography could be measured more accurately.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE)
Sen-Yih Chou, Sen-Yih Chou, Sien Chi, Sien Chi, Chia-Hung Cho, Chia-Hung Cho, Ming-Jhe Du, Ming-Jhe Du, } "Projection moiré profilometry with high-dynamic range image," Optical Engineering 51(2), 021112 (2 March 2012). https://doi.org/10.1117/1.OE.51.2.021112 . Submission:
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