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Proceedings Paper

Camera calibration in augumented reality
Author(s): Yunhao Li; Maojun Zhang; Yue Qi; LinDa Wu
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Paper Abstract

One of the key issues of Augmented Reality (AR) is the camera calibration. In AR applications, camera calibration has some special requirements; it prefers good registration of virtual objects in real environment to high precision. We propose a flexible and robust technique to calibrate the camera, it is well suited for augmented reality applications. This technique only requires the camera to observe a planar pattern, e.g. a normal wall. The proposed procedure consists of a closed-form solution, followed by a nonlinear refinement based on the maximum likelihood criterion. We have tested out proposed technique in the real environment, and have obtained very good results. Detailed analysis is also included in this paper. Compared with classical techniques which use expensive equipment such as two or three orthogonal planes, our technique is easy to use and flexible.

Paper Details

Date Published: 10 October 2000
PDF: 5 pages
Proc. SPIE 4222, Process Control and Inspection for Industry, (10 October 2000);
Show Author Affiliations
Yunhao Li, National Univ. of Defense Technology (China)
Maojun Zhang, National Univ. of Defense Technology (China)
Yue Qi, National Univ. of Defense Technology (China)
LinDa Wu, National Univ. of Defense Technology (China)

Published in SPIE Proceedings Vol. 4222:
Process Control and Inspection for Industry
Shulian Zhang; Wei Gao, Editor(s)

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