Method for calibrating cameras with large lens distortion

De Xu; Youfu Li; Min Tan

doi:10.1117/1.2188393

1 April 2006 Method for calibrating cameras with large lens distortion

De Xu, Youfu Li, Min Tan

Author Affiliations +

Optical Engineering, Vol. 45, Issue 4, 043602 (April 2006). https://doi.org/10.1117/1.2188393

Abstract

A new calibration method is proposed for calibrating cameras with large lens distortion, using a planar grid pattern. The distortions are adjusted with an iterative algorithm. When the points on each curve in the image of the grid pattern are fitted with a linear equation in the image space, the distortion correction factors are determined. The camera's optical center is obtained through a Hough transform. Then, a group of linear equations and a cubic equation are established in the corrected image space. The remaining parameters of the camera are then deduced. Only one view of a planar grid pattern is needed for this method. The experimental results verify the effectiveness of the proposed method.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

De Xu, Youfu Li, and Min Tan "Method for calibrating cameras with large lens distortion," Optical Engineering 45(4), 043602 (1 April 2006). https://doi.org/10.1117/1.2188393

Published: 1 April 2006

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