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

Wei Zhang; Liandong Yu; Weishi Li

doi:10.1117/12.2270250

13 June 2017 Non-uniform fringe patterns for compensating the projector distortion in absolute phase map

Wei Zhang, Liandong Yu, Weishi Li

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.

Citation Download Citation

Wei Zhang, Liandong Yu, and 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); https://doi.org/10.1117/12.2270250

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