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Received: 2003-04-03

Revision Accepted: 2003-09-05

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Bio-Design and Manufacturing  2022 Vol.5 No.5 P.567~571


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 D, 2022, 5(5): 567~571.

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A1 - LI Hong-dong
A1 - GU Wei-kang
J0 - Journal of Zhejiang University Science D
VL - 5
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DOI - 10.1631/jzus.2004.0567

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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