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Optical Engineering

Camera calibration with lens distortion and from vanishing points
Author(s): Bingwei He; Youfu Li
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Paper Abstract

Camera calibration is a fundamental task in computer vision and photogrammetry. This paper presents an approach for automatic estimation of intrinsic parameters from images by using vanishing points with orthogonal directions. Firstly, image lines are extracted and are clustered into groups corresponding to three dominant vanishing points. Second, camera parameters including the radial distortion are estimated by adjusting linear parameters locating the images. Finally, the rotation matrix of the projection matrix is computed from the vanishing points, and the image edges and the translation matrix are obtained with the help of additional translation motion between the viewpoints. Our approach does not need any a priori information about the cameras being used. Experiments to evaluate the performance of this approach on synthetic and real data are reported.

Paper Details

Date Published: 1 January 2009
PDF: 11 pages
Opt. Eng. 48(1) 013603 doi: 10.1117/1.3070650
Published in: Optical Engineering Volume 48, Issue 1
Show Author Affiliations
Bingwei He, Fuzhou Univ. (China)
Youfu Li, City Univ. of Hong Kong (Hong Kong, China)

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