Abstract
In the stereo vision system, the key problem is a search problem which finds the corresponding pixels in the two stereoscopic images. These pixels must satisfy a very strict photometric constraint. In our approach, we use a special configuration of the two cameras in order to speed up the stereo vision process. In this paper, a theoretical study of the radiance variation between two stereo vision matching pixels is presented. This study shows the efficiency and the limitation of the used photometric constraint. Furthermore, we show the influence of the maximum value of the disparity and the one of the focal length of the two cameras on the stereo vision process. Some experimental results obtained on real images are given in the end of this paper.
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