Camera lens distortion calibration with co-line points

ZHANG Jing; ZHU Da-yong; JIA Xiao-dong

A camera calibration method with co-line points is proposed,in which distortion center is located according to cross ratio invariability,and then distortion coefficients are calculated based on a line's central projection is a line.The emulation indicates that only if some measures are adopted to decrease the projection points' coordinate error,error of the distortion center would be less than 2 pixels and relative error of the distortion coefficients would be no more than 0.1.The experiment shows that these distortion parameters gained with the proposed method are good at a correcting distortion image.Because of its easiness and simplicity,this method can be used in some domains such as photogrammetry,computer vision,etc.

Corresponding author: ZHU Da-yong, dyzhu@uestc.edu.cn;

1. School of Opto-electronic Information, University of Electronic Science & Technology of China, Chengdu 610054, China

Received Date: 2004-11-01

Accepted Date: 2005-07-18

Available Online: 2006-03-25

Abstract: A camera calibration method with co-line points is proposed,in which distortion center is located according to cross ratio invariability,and then distortion coefficients are calculated based on a line's central projection is a line.The emulation indicates that only if some measures are adopted to decrease the projection points' coordinate error,error of the distortion center would be less than 2 pixels and relative error of the distortion coefficients would be no more than 0.1.The experiment shows that these distortion parameters gained with the proposed method are good at a correcting distortion image.Because of its easiness and simplicity,this method can be used in some domains such as photogrammetry,computer vision,etc.

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Reference (8)

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Camera lens distortion calibration with co-line points

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References

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