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Proceedings Paper

Triple-lines approach to calibration of a camera mounted in an intelligent vehicle
Author(s): Qing Li; Nanning Zheng; Xuetao Zhang
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Paper Abstract

A simple and practical approach to calibrate extrinsic parameters of camera mounted in intelligent vehicle is presented. Because mapping of three parallel lines in the world into image plane have same vanishing point and different slope, according to perspective projection principle, an inherent relationship exists among camera extrinsic parameters and vanishing point and slope. Such the analytic expression of camera extrinsic parameters can be built by mathematical derivation, without iterative and optimizing calculation. After positioning intersection points and slopes of imaging lines manually or automatically, extrinsic parameters can be calculated directly. The experimental results show that the method can be applied in various circumstances.

Paper Details

Date Published: 2 September 2004
PDF: 8 pages
Proc. SPIE 5422, Unmanned Ground Vehicle Technology VI, (2 September 2004); doi: 10.1117/12.541996
Show Author Affiliations
Qing Li, Xi'an Jiaotong Univ. (China)
Nanning Zheng, Xi'an Jiaotong Univ. (China)
Xuetao Zhang, Xi'an Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 5422:
Unmanned Ground Vehicle Technology VI
Grant R. Gerhart; Chuck M. Shoemaker; Douglas W. Gage, Editor(s)

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