Method for efficient coding of shape descriptor parameters

Details Method for efficient coding of shape descriptor parameters Method for efficient coding of shape descriptor parameters

2007-07-17

2007-07-17

Do, Anh Hong (Department: 2624)

Image analysis

Image compression or coding

Shape, icon, or feature-based compression

C382S251000

Reexamination Certificate

active

10203478

ABSTRACT:
A method of representing an object appearing in a still or video image, by processing signals corresponding to the image, comprises deriving a plurality of sets of co-ordinate values representing the shape of the object and quantising the co-ordinate values to derive a coded representation of the shape, and further comprises quantising a first co-ordinate value over a first quantisation range and quantising a smaller co-ordinate value over a smaller range.

REFERENCES:
patent: 5740281 (1998-04-01), Hirai
patent: 0 562 672 (1993-09-01), None
patent: 2 351 826 (2001-01-01), None
F. Mokhtarian et al., “Robust and Efficient Shape Indexing Through Curvature Scale Space,” Proc. British Machine Vision Conference, pp. 53-62, Edinburgh, UK 1996.
F. Mokhtarian et al., “Indexing an Image Database by Shape Content using Curvature Scale Space,” Proc. IEE Colloquium on Intellegient Databases, London 1996.
Abbasi et al., Multimedia Systems, vol. 7, pp. 467-475, No. 6 (1999) “Curvature Scale Space Image in Shape Similarity Retrieval”.

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