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Proceedings Paper

Accurate camera intrinsic parameters calibration using virtual stereo board
Author(s): Zhijing Yu; Jiwei Ma; Yuquan Ma; Rensheng Che; Zhihong Li; Jinze Li; Wei Tian
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Paper Abstract

A high accuracy and flexible method for calibrating intrinsic parameters of CCD camera is presented. The intrinsic parameters of camera is determined from collinear constraint and computed through bundle adjustment algorithm. Calibration is carried out by moving an optical feature point with CMM and forming a virtual stereo calibration board. The images of this virtual board are taken by the calibrated camera which in different locations and orientations. Due to take infrared LED as feature point and the light intensity of these feature points can be automatically controlled according to the distance between camera and feature point, the imaging feature points have uniform intensity profile and high contrast with background, and hence the calibration accuracy is improved. This method has been used for calibrating the Kodak MegaPlus 1.4i CCD cameras, which used in large-scale stereo vision coordinate online measurement system, and obtained higher measurement precision.

Paper Details

Date Published: 20 January 2005
PDF: 12 pages
Proc. SPIE 5633, Advanced Materials and Devices for Sensing and Imaging II, (20 January 2005); doi: 10.1117/12.571934
Show Author Affiliations
Zhijing Yu, Hebei Normal Univ. of Science and Technology (China)
Jiwei Ma, Hebei Normal Univ. of Science and Technology (China)
Yuquan Ma, Hebei Normal Univ. of Science and Technology (China)
Rensheng Che, Harbin Institute of Technology (China)
Zhihong Li, Hebei Normal Univ. of Science and Technology (China)
Jinze Li, Hebei Normal Univ. of Science and Technology (China)
Wei Tian, Hebei Normal Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 5633:
Advanced Materials and Devices for Sensing and Imaging II
Anbo Wang; Yimo Zhang; Yukihiro Ishii, Editor(s)

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