Three-dimensional profilometry based on two-step generalized phase shift for phase measurement of grating projections

An algorithm is proposed to extract the phase from deformed grating images using a two-step generalized phase-shifting technique for fringe projection profilometry (FPP). This method is based on the principle of the least squares iterative method, which directly extracts unknown phase shift from two...

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Bibliographic Details
Main Authors: Jiacheng Qi, Hongjin Qin, Ang Sun, Youpan Lai, Jie Li
Format: Article
Language:English
Published: Elsevier 2025-12-01
Series:Results in Optics
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666950125001129
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