Recently introduced DLP Discovery technology allows for tens of kHz binary image switching, which has great potential for superfast 3-D shape measurement. This paper presents a system that realizes 3-D shape measurement by using a DLP Discovery technology to switch binary structured patterns at very high frame rates. The sinusoidal fringe patterns are generated by properly defocusing the projector. Combining this approach with a phase-shifting method, we achieve an unprecedented rate for 3-D shape measurement: 667 Hz. This technology can be applied to numerous applications including medical science, biometrics, and entertainment.
© 2010 Optical Society of AmericaFull Article | PDF Article
Song Zhang and Shing-Tung Yau
Opt. Express 14(7) 2644-2649 (2006)
Yuanzheng Gong and Song Zhang
Opt. Express 18(19) 19743-19754 (2010)
Yong Li, Cuifang Zhao, Yixian Qian, Hui Wang, and Hongzhen Jin
Opt. Express 18(21) 21628-21635 (2010)