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Calibration of fringe projection profilometry with bundle adjustment strategy

Yongkai Yin, Xiang Peng, Ameng Li, Xiaoli Liu, and Bruce Z. Gao

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Abstract

The measurement accuracy of fringe projection profilometry (FPP) largely depends on the calibration procedure. A more reliable calibration approach based on the stereo vision model of the FPP scheme in conjunction with the bundle adjustment strategy is presented. It can adjust the coordinates of benchmarks and thereby estimate the scheme parameters more accurately even with an imperfect target. The experiment results shows that the proposed approach can reach highly accurate calibration by solely using a printed target pattern, which verifies the proposed approach.

©2012 Optical Society of America

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