| Computer & Information Science |
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| A simple rectification method for linear multi-baseline stereovision system |
| DU Xin, LI Hong-dong, GU Wei-kang |
| Department of Information and Electronics, Zhejiang University, Hangzhou 310027, China |
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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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Received: 03 April 2003
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