13 June 2017 Non-uniform fringe patterns for compensating the projector distortion in absolute phase map
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Proceedings Volume 10449, Fifth International Conference on Optical and Photonics Engineering; 104490V (2017) https://doi.org/10.1117/12.2270250
Event: Fifth International Conference on Optical and Photonics Engineering, 2017, Singapore, Singapore
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.
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Wei Zhang, Wei Zhang, Liandong Yu, Liandong Yu, Weishi Li, Weishi Li, } "Non-uniform fringe patterns for compensating the projector distortion in absolute phase map", Proc. SPIE 10449, Fifth International Conference on Optical and Photonics Engineering, 104490V (13 June 2017); doi: 10.1117/12.2270250; https://doi.org/10.1117/12.2270250
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