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

2008-01-22

2008-01-22

Do, Anh Hong (Department: 2624)

Image analysis

Image compression or coding

Shape, icon, or feature-based compression

C382S251000

Reexamination Certificate

active

07321696

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 quantizing the co-ordinate values to derive a coded representation of the shape, and further comprises quantizing a first co-ordinate value over a first quantization range and quantizing a smaller co-ordinate value over a smaller range.

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Abbasi et al., Multimedia Systems, vol. 7, pp. 467-475, No. 6 (1999).
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 and Image Database by Shape Content using Curvature Scale Space,” Proc. IEE Colloquium on Intelligent Databases, London 1996.

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