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20 August 2020 Design of 2D fringe pattern for tele-centric Fourier transform profilometry
Wei-Hung Su, Zhi-Hsiang Liu
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Proceedings Volume 11498, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XIV; 114980V (2020) https://doi.org/10.1117/12.2572294
Event: SPIE Optical Engineering + Applications, 2020, Online Only
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Abstract
A one-shot fringe projection scheme with a 2D fringe pattern for tele-centric Fourier transform profilometry is presented. Even though the size of the inspected object is so small that the surface is not fully projected by one fringe, unwrapping can be performed without ambiguity.
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Wei-Hung Su and Zhi-Hsiang Liu "Design of 2D fringe pattern for tele-centric Fourier transform profilometry", Proc. SPIE 11498, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XIV, 114980V (20 August 2020); https://doi.org/10.1117/12.2572294
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KEYWORDS
Fringe analysis
Fourier transforms
Inspection
3D metrology
Projection systems
Reflectivity
Image acquisition
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