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Proceedings Paper

Calibration of a dual-PTZ camera system for stereo vision
Author(s): Yau-Zen Chang; Jung-Fu Hou; Yi Hsiang Tsao; Shih-Tseng Lee
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Paper Abstract

In this paper, we propose a calibration process for the intrinsic and extrinsic parameters of dual-PTZ camera systems. The calibration is based on a complete definition of six coordinate systems fixed at the image planes, and the pan and tilt rotation axes of the cameras. Misalignments between estimated and ideal coordinates of image corners are formed into cost values to be solved by the Nelder-Mead simplex optimization method. Experimental results show that the system is able to obtain 3D coordinates of objects with a consistent accuracy of 1 mm when the distance between the dual-PTZ camera set and the objects are from 0.9 to 1.1 meters.

Paper Details

Date Published: 7 September 2010
PDF: 6 pages
Proc. SPIE 7798, Applications of Digital Image Processing XXXIII, 77982F (7 September 2010); doi: 10.1117/12.860331
Show Author Affiliations
Yau-Zen Chang, Chang Gung Univ. (Taiwan)
Jung-Fu Hou, Chang Gung Univ. (Taiwan)
Yi Hsiang Tsao, Chang Gung Univ. (Taiwan)
Shih-Tseng Lee, Chang Gung Memorial Hospital (Taiwan)

Published in SPIE Proceedings Vol. 7798:
Applications of Digital Image Processing XXXIII
Andrew G. Tescher, Editor(s)

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