Error analysis and correcting 3D profilometry based on quadrature demodulation

Ting Su; Yong-Lin Zhang

doi:10.1117/12.483260

16 September 2002 Error analysis and correcting 3D profilometry based on quadrature demodulation

Ting Su, Yong-Lin Zhang

Proceedings Volume 4929, Optical Information Processing Technology; (2002) https://doi.org/10.1117/12.483260
Event: Photonics Asia, 2002, Shanghai, China

Abstract

In this paper, the errors of three-dimensioned profilometry based on quadrature demodulation are analyzed, and the corrected results are present. We found the method had three primary errors: the error that is caused by speckle of laser interference system, the error that is caused by mixing in quadrature demodulation and the error that is caused by the cosine fringe distortion in the structure light. We analyzed these three errors by experiment and theory. At last, we gave the corrected results.

Citation Download Citation

Ting Su and Yong-Lin Zhang "Error analysis and correcting 3D profilometry based on quadrature demodulation", Proc. SPIE 4929, Optical Information Processing Technology, (16 September 2002); https://doi.org/10.1117/12.483260

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