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Optical Engineering

Camera calibration method based on parallelogram similarity invariants
Author(s): Yong-He Tang; Huan-Zhang Lu
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Paper 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.

Paper Details

Date Published: 4 May 2012
PDF: 11 pages
Opt. Eng. 51(5) 053601 doi: 10.1117/1.OE.51.5.053601
Published in: Optical Engineering Volume 51, Issue 5
Show Author Affiliations
Yong-He Tang, National Univ. of Defense Technology (China)
Huan-Zhang Lu, National Univ. of Defense Technology (China)


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