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Received: 2003-04-03

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Journal of Zhejiang University SCIENCE A 2004 Vol.5 No.5 P.567~571

http://doi.org/10.1631/jzus.2004.0567


A simple rectification method for linear multi-baseline stereovision system


Author(s):  DU Xin, LI Hong-dong, GU Wei-kang

Affiliation(s):  Department of Information and Electronics, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   duxin@dial.zju.edu.cn

Key Words:  Rectification, Multi-baseline, Stereovision


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DU Xin, LI Hong-dong, GU Wei-kang. A simple rectification method for linear multi-baseline stereovision system[J]. Journal of Zhejiang University Science A, 2004, 5(5): 567~571.

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Abstract: 
The linear multi-baseline stereo system introduced by the CMU-RI group has been proven to be a very effective and robust stereovision system. However, most traditional stereo rectification algorithms are all designed for binocular stereovision system, and so, cannot be applied to a linear multi-baseline system. This paper presents a simple and intuitional method that can simultaneously rectify all the cameras in a linear multi-baseline system. Instead of using the general 8-parameter homography transform, a two-step virtual rotation method is applied for rectification, which results in a more specific transform that has only 3 parameters, and more stability. Experimental results for real stereo images showed the presented method is efficient.

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Reference

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