From Event: SPIE Optical Engineering + Applications, 2016
We propose to combine the Fourier transform profilometry (FTP) and phase-shifting profilometry (PSP) to reduce motion
induced artifacts. The proposed method can be divided into three steps: Step 1 is to obtain a temporarily unwrapped
absolute phase map of the entire scene using the FTP method, albeit the absolute phase map has motion introduced artifacts;
Step 2 is to generate continuous relative phase maps without motion artifacts for each isolated object by spatially
unwrapping each isolated phase map retrieved from the FTP method; and Step 3 is to determine the absolute phase map for
each isolate region by referring to the temporally unwrapped phase using PSP method. Experimental results demonstrated
success of the proposed method for measuring rapidly moving multiple isolated objects.
Beiwen Li, Ziping Liu, and Song Zhang, "Motion artifact reduction using hybrid Fourier transform with phase-shifting methods," Proc. SPIE 9960, Interferometry XVIII, 99600K (Presented at SPIE Optical Engineering + Applications: August 31, 2016; Published: 28 August 2016); https://doi.org/10.1117/12.2236244.
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