Pixel-wise rational model for structured light system
This work addresses lens distortion issues in structured light systems, which is important for applications like 3D scanning and computer vision, but appears incremental as it builds on existing calibration methods.
The authors tackled the problem of lens distortion in structured light systems by developing a pixel-wise rational model, achieving high measurement accuracy both inside and outside the calibration volume.
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.