Pixel-wise rational model for structured light system. (arXiv:2305.07128v1 [physics.optics])

This Letter presents a novel structured light system model that effectively
considers local lens distortion by pixel-wise rational functions. We leverage
the stereo method for initial calibration and then estimate the rational model
for each pixel. Our proposed model can achieve high measurement accuracy within
and outside the calibration volume, demonstrating its robustness and accuracy.

accuracy arxiv light measurement novel optics physics pixel