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Hierarchical correspondance of gray connected components in stereo images using epipolar geometry

Wang Y., Bhattacharya P.

Machine Graphics and Vision

1999

Vol. 8, No. 1

19-54

In this paper, we propose a new feature--based method for stereo matching. The matching primitives that we use are the boundaries of cerain parameter--dependet connected components of images. Under cerain assumptions, there is a one--to--one correspondence between subsets of the points on the boundaries of connected components of stereo pairs. This correspondance can be identified using the epipolar geometry. Using matched biundareies, we can identify the corresponding connected components determined by the boundaries. By changing the values of the parameters, we obtain a hierarchy of connected components in a gray image, which in turn provides us with a hierarchical stereo correspondance method.