Method and device for compact representation of a discrete regio

Details Method and device for compact representation of a discrete regio Method and device for compact representation of a discrete regio

1995-10-26

1998-06-09

Boudreau, Leo

Image analysis

Image compression or coding

Contour or chain coding

382243, G06K 900

Patent

active

057648085

ABSTRACT:
A method (900, 1000) and device (100, 600) are provided for encoding and/or decoding a compact representation of a discrete region contour for the purposes of image and video compression. The compact representation described provides bitstream scalability so that progressively larger subsets of the compact representation can be used to provide progressive better quality in the approximate reconstruction of the discrete region contours. The resulting device and method provide for coding of shape information within object-based and region-based image and video compression systems.

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patent: 5303313 (1994-04-01), Mark et al.
J.L. Kim, J. H. Kim, H.M. Jung, and B.U. Lee "Contour Coding Using DST (discrete sine transform)", ISO/IEC JTC1/SC29/WG11 (MPEG) committee document MPEG 95/053 Lausanene, Switzerland, Mar. 1995, no page no.
Konstantinides, "An Architecture for Lossy Compression of Waveforms using Piecewise Linear Approximation", IEE Transactions on Signal Processing vol, 42, No. 9 Sep. 1994. (No page no.).
Choo, H. Freeman, "An Efficient Technique for Compressing Chain-Coded Line Drawing Images", IEEE, pp. 717-720, 1992 (No place of publication).

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