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Proceedings Paper

An accurate approach for calibrating rotational angle of camera
Author(s): Zhenqi Niu; Kuo Liu; Zonghua Zhang
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Paper Abstract

In order to obtain the scene information of a larger or 360 degrees field of view, it is necessary to accurately know the rotational angle of a camera around a fixed axis, which directly affects the quality of point cloud registration and integration. This paper presents a novel rotational angle calibration method by using an extra large viewing-angle camera and high precise checkerboard. The large viewing-angle camera is fixed and has the same imaging direction as the calibrated camera. The checkerboard is placed in front of the two cameras to determine their relative positions. The experimental results show that the error between the actual rotational angle and the calibration result is below 0.0959 degrees. The proposed calibration method can accurately and effectively obtain the rotational angle of a camera.

Paper Details

Date Published: 24 November 2016
PDF: 7 pages
Proc. SPIE 10023, Optical Metrology and Inspection for Industrial Applications IV, 1002312 (24 November 2016); doi: 10.1117/12.2245820
Show Author Affiliations
Zhenqi Niu, Hebei Univ. of Technology (China)
Kuo Liu, Hebei Univ. of Technology (China)
Zonghua Zhang, Hebei Univ. of Technology (China)
Univ. of Huddersfield (United Kingdom)

Published in SPIE Proceedings Vol. 10023:
Optical Metrology and Inspection for Industrial Applications IV
Sen Han; Toru Yoshizawa; Song Zhang, Editor(s)

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