High-resolution, high-speed three-dimensional shape measurement using projector defocusing
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2011-02-11
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Zhang, Song
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Mechanical Engineering
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Mechanical Engineering
Abstract
We present a high-resolution, high-speed three-dimensional (3-D) shape measurement technique that can reach the speed limit of a digital fringe projection system without significantly increasing the system cost. Instead of generating sinusoidal fringe patterns by a computer directly, they are produced by defocusing binary ones. By this means, with a relatively inexpensive camera, the 3-D shape measurement system can double the previously maximum achievable speed and reach the refreshing rate of a digital-light-processing projector: 120 Hz.
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This article is from Optical Engineering 50 (2011): 023603, doi:10.1117/1.3534798. Posted with permission.
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Sat Jan 01 00:00:00 UTC 2011