Method for calibrating cameras with large lens distortion

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Article number43602
Journal / PublicationOptical Engineering
Volume45
Issue number4
Publication statusPublished - Apr 2006

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.

Research Area(s)

  • Camera calibration, Distortion correction, Hough transform, Planar pattern, Radial distortion

Citation Format(s)

Method for calibrating cameras with large lens distortion. / Xu, De; Li, You Fu; Tan, Min.

In: Optical Engineering, Vol. 45, No. 4, 43602, 04.2006.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review