25 August 2008 Projected fringe profilometry using a holographic technique: a compact design for endoscopes
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Abstract
We propose a projection scheme using a diffraction element for finding the absolute shape of an object with large depth discontinuities. Its application built into an endoscope to retrieve an object inside a body cavity is presented as well. Among all existing fringe projection schemes, this proposed method is notable for its compact design. Only one phase measurement is required. To inspect a dynamic object is desirable.
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Wei-Hung Su, Wei-Hung Su, Chi-Hung Shao, Chi-Hung Shao, } "Projected fringe profilometry using a holographic technique: a compact design for endoscopes", Proc. SPIE 7056, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II, 70561R (25 August 2008); doi: 10.1117/12.796700; https://doi.org/10.1117/12.796700
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