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Proceedings Paper

Method for searching the mapping relationship between space points and their image points in CCD camera
Author(s): Yuchen Sun; Baozhen Ge; Qieni Lu; Jin Zou; Yimo Zhang
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Paper Abstract

BP Neural Network Method and Linear Partition Method are proposed to search the mapping relationship between space points and their image points in CCD cameras, which can be adopted to calibrate three-dimensional digitization systems based on optical method. Both of the methods only need the coordinates of calibration points and their corresponding image points’ coordinates as parameters. The principle of the calibration techniques includes the formula and solution procedure is deduced in detail. Calibration experiment results indicate that the use of Linear Partition Method to coplanar points enables its measuring mean relative error to reach 0.44 percent and the use of BP Neural Network Method to non-coplanar points enables its testing accuracy to reach 0.5-0.6 pixels.

Paper Details

Date Published: 20 January 2005
PDF: 5 pages
Proc. SPIE 5633, Advanced Materials and Devices for Sensing and Imaging II, (20 January 2005); doi: 10.1117/12.571024
Show Author Affiliations
Yuchen Sun, Tianjin Univ. (China)
Baozhen Ge, Tianjin Univ. (China)
Qieni Lu, Tianjin Univ. (China)
Jin Zou, Tianjin Univ. (China)
Yimo Zhang, Tianjin Univ. (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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