Blind Detection and Compensation of Camera Lens Geometric Distortions

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.Comment: 6 pages, 4 figures, 2 table

Comptonia peregrina (L.) J.M. Coult.

https://thekeep.eiu.edu/herbarium_specimens_byname/21508/thumbnail.jp

Comptonia peregrina (L.) J.M. Coult.

https://thekeep.eiu.edu/herbarium_specimens_byname/21508/thumbnail.jp