Methods of coding the order information for multiple-layer verti

Details Methods of coding the order information for multiple-layer verti Methods of coding the order information for multiple-layer verti

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.

REFERENCES:
patent: 5634113 (1997-05-01), Rusterholz
patent: 5764808 (1998-06-01), O'Connell et al.
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.

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