Method and apparatus for encoding a contour of an object express

Image analysis – Image compression or coding – Contour or chain coding

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382232, 382266, G06K 948

Patent

active

060553375

ABSTRACT:
A method encodes a contour image of an object expressed in a video signal. First, a centroid for the contour of the object is detected by averaging pixel positions on the contour. A set of primary vertices on the contour are determined based on the centroid. Subsequently, a set of secondary vertices on the contour are determined based on the set of primary vertices. The set of primary vertices, the set of secondary vertices and the centroid are encoded to provide a digitally coded contour signal.

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Chuang-Gu et al. "Contour Simplification and Motion Compensated Coding"-Signal Processing Image Communication-pp. 279-296, Dec. 1995.

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