THE APPLICATIONS OF UNCALIBRATED OCCLUSION JUNCTIONS
A. Broadhurst and R. Cipolla
When a scene is viewed from two different viewpoints there are often regions which are only visible in one of the two views. These occluded regions give important information about depth discontinuities in the image. When a background line is obscured by a foreground object, it forms a T-junction in the image, and these junction points can be used to detect occlusion.
Two algorithms are presented in this paper. The first algorithm uses the trifocal tensor to automatically locate T-junctions visible in three views, whilst the second application uses junction points to obtain a constraint for the detection of planar surfaces.
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