This paper presents a blind detection and compensation technique for camera lens geometric distortions. The lens distortion introduces higher-order correlations in the frequency domain and in turn it can be detected using higher-order spectral analysis tools without assuming any specific calibration target. The existing blind lens distortion removal method only considered a single-coefficient radial distortion model. In this paper, two coefficients are considered to model approximately the geometric distortion. All the models considered have analytical closed-form inverse formulae.
@article{arxiv.cs/0405095,
title = {Blind Detection and Compensation of Camera Lens Geometric Distortions},
author = {Lili Ma and YangQuan Chen and Kevin L. Moore},
journal= {arXiv preprint arXiv:cs/0405095},
year = {2007}
}