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Proceedings Paper

Non-uniform fringe patterns for compensating the projector distortion in absolute phase map
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Paper Abstract

Digital projector is a main component in Fringe projection profilometry (FPP). To acquire precise 3D profiles, it is crucial to accurately calibrate and compensate projector distortion. In this paper, we propose a new method to improve the accuracy of projector compensation. Coefficients of projector distortion are first accurately calibrated. And based on the calibration results, non-uniform fringe patterns are designed to compensate the projector distortion. With the non-uniform fringe patterns, phase errors in absolute phase map can be automatically and effectively offset. Experimental results are shown to demonstrate the validity of the proposed method.

Paper Details

Date Published: 13 June 2017
PDF: 6 pages
Proc. SPIE 10449, Fifth International Conference on Optical and Photonics Engineering, 104490V (13 June 2017); doi: 10.1117/12.2270250
Show Author Affiliations
Wei Zhang, Hefei Univ. of Technology (China)
Liandong Yu, Hefei Univ. of Technology (China)
Weishi Li, Hefei Univ. of Technology (China)

Published in SPIE Proceedings Vol. 10449:
Fifth International Conference on Optical and Photonics Engineering
Anand Krishna Asundi, Editor(s)

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