Camera calibration method based on parallelogram similarity invariants

Yong-He Tang; Huan-Zhang Lu

doi:10.1117/1.OE.51.5.053601

4 May 2012 Camera calibration method based on parallelogram similarity invariants

Yong-He Tang, Huan-Zhang Lu

Author Affiliations +

Optical Engineering, Vol. 51, Issue 5, 053601 (May 2012). https://doi.org/10.1117/1.OE.51.5.053601

Abstract

In order to make full use of the characteristics of parallelogram and calibrate the camera online, on the basis of studying the projective properties of a parallelogram, a camera calibration method based on parallelogram similarity invariants is presented. At least three images of the space parallelogram taken from different angles were used to establish the constraint equations on the image of the absolute conic and parallelogram similarity invariants, and the camera's intrinsic and extrinsic parameters were computed by solving the constraint equations. The first two parameters of radial distortion were also estimated according to the projective property of straight line. Experimental results on simulated data and real images demonstrate that the proposed algorithm is effective and flexible.

Citation Download Citation

Yong-He Tang and Huan-Zhang Lu "Camera calibration method based on parallelogram similarity invariants," Optical Engineering 51(5), 053601 (4 May 2012). https://doi.org/10.1117/1.OE.51.5.053601

Published: 4 May 2012

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