Contour encoding method using error bands

Details Contour encoding method using error bands Contour encoding method using error bands

1997-05-19

1999-06-15

Couso, Jose L.

Image analysis

Image compression or coding

Contour or chain coding

G06K 936

Patent

active

059129913

ABSTRACT:
A segment-based contour encoding method is provided. A motion compensation of an object in a current image with respect to a reference image is performed to obtain a motion-compensated image. The contour contained in the image motion-compensated is compared with a contour of an object in a current image, to divide the whole contour of the object in the current image into a global motion compensated (GMC) segments and a global motion compensation failure (GMF) segments. Each GMF segments is divided into a local motion compensated (LMC) segment and a local motion compensation failure (LMF) segment. The GMC segments and the LMC segments are motion-compensation-encoding and the LMF segments are encoded using only pixel information constituting each LMF segment. The contour encoding method can reduce the number of the LMF segments and can perform an efficient encoding operation for motion compensation encoding.

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