Image analysis – Image compression or coding – Contour or chain coding
Patent
1996-12-30
1999-03-16
Couso, Jose L.
Image analysis
Image compression or coding
Contour or chain coding
382236, 382238, 348402, 348413, G06K 948
Patent
active
058839771
ABSTRACT:
Previous vertices on a previous contour are mapped onto a current contour in this method to form a predicted vertex on the current contour corresponding to each of the previous vertices and vertex displacements between the previous vertices and their corresponding predicted vertices are calculated. After current vertices on the current contour being determined, the current contour is coded based on either the current vertices to thereby provide intra-coded data or the previous contour to provide inter-coded data; and either the intra-coded data or the inter-coded data is selected based on the vertex displacements as encoded data for the current contour.
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patent: 5691769 (1997-11-01), Kim
patent: 5737449 (1998-04-01), Lee
Hoetter M, "Object-Oriented Analysis-Synthesis Coding Based On Moving Two-Dimensional Objects" Signal Processing: Image Communication, vol. 2, No. 4, Dec. 1990, pp. 409-428.
Chuang Gu et al., "Contour Simplification and Motion Compensated Coding" Signal Processing: Image Communication, vol. 7, No. 4/6, Nov. 1995, pp. 279-296.
Couso Jose L.
Daewoo Electronics Co. Ltd.
Do Anh Hong
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