Image analysis – Image compression or coding – Contour or chain coding
Patent
1997-08-19
1999-12-14
Couso, Jose L.
Image analysis
Image compression or coding
Contour or chain coding
382240, 345440, 395500, G06K 948
Patent
active
060028033
ABSTRACT:
A method for coding multiple layer, vertex-based shape representation and bit stream scalable shape includes selecting vertices in a hierarchical scheme; defining multiple layers of vertices; arranging M layers of vertices in order, from the most salient layer to the least salient layer; placing vertices in their natural order along their image contour within each layer; storing vertices from each layer separately; and recording vertex order information for each vertex in each layer of vertices. Four variations of the method for multiple layer vertex representation and coding are disclosed where the correct order information is coded for correct reconstruction of the shape information.
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patent: 5825369 (1998-10-01), Rossignac et al.
Abuhaiba et al., "Processing of Binary Images of Handwritten Text Documents", Elsevier Science Ltd., Pattern Recognition, vol. 29, No. 7, pp. 1161-1177, 1966.
Horace IP et al., "Three Dimensional Structural Texture Modeling and Segmentation", Elsevier Science Ltd., Pattern Recognition, vol. 28, No. 9, pp. 1299-1319, Feb. 1995.
Qian Richard J.
Sezan M. Ibrahim
Couso Jose L.
Do Anh Hong
Sharp Laboratories of America Inc.
Varitz, PC Robert D.
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