Stereo‐based description by generalized cylinder complexes from occluding contours

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Abstract
This paper proposes a stereo‐based description technique as a preprocessing step for three‐dimensional (3‐D) recognition of an object representable by a straight homogeneous generalized cylinder (SHGC). The 3‐D position estimate of SHGC model be computed if the object being modeled is either a solid of revolution or a body whose contour is symmetrical with respect to its axial.The proposed algorithm is applicable to a complex object if that object can be partitioned into a set of multiple SHGC's. The most important task of the algorithm is the extraction of a symmetry axis for each GC section of the object. The contour lines are analyzed in a scale space. The analysis is performed recursively to obtain each GC section that has stable contour lines. The effectiveness of the proposed algorithm for 3‐D description of an object has been demonstrated via experimentation.

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