Superfast phase-shifting method for 3-D shape measurement
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2009-10-15
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Lei, Shuangyan
Zhang, Song
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Mechanical Engineering
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Abstract
We present a 3-D shape-measurement technique using a defocused projector. The ideal sinusoidal fringe patterns are generated by defocusing binary structured patterns, and the phase shift is realized by shifting the binary patterns spatially. Because this technique does not require calibration of the gamma of the projector, it is easy to implement and thus is promising for developing flexible 3-D shape measurement systems using digital video projectors.
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This article is from Optics Letters 34 (2009): 3080–3082, doi:10.1364/OL.34.003080. Posted with permission.
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Thu Jan 01 00:00:00 UTC 2009