Method and apparatus for digital image compression using a dynamical system
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United States of America Patent
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May 21, 2002
Grant Date -
N/A
app pub date -
Mar 3, 2000
filing date -
Nov 18, 1999
priority date (Note) -
Expired
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Abstract
Digital images are transformed using a set of filters derived from the evolving states of cellular automata. In accordance with a preferred embodiment, the ensuing transform coefficients are encoded using a sub-band-based embedded stream technique that places the most important transform coefficients at the top of a hierarchical storage/transmission. Compression is achieved when the stream encoding/decoding is terminated after 1) a stipulated maximum bit budget is reached, or 2) when a predefined maximum error rate is attained. The present invention provides an encoding method for accelerating the transmission of image/video data through communications networks and storing the compressed data on digital storage media.
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