Image analysis – Image compression or coding
Patent
1997-04-10
2000-09-12
Boudreau, Leo H.
Image analysis
Image compression or coding
382166, 382238, 382239, 358539, 358540, G06K 900, G06K 936, G06K 946, H04N 146
Patent
active
061188980
ABSTRACT:
Methods and apparatus for compressing and decompressing multiple data sets (e.g., multiple color planes in a color image) in which interdependencies between the data sets, as well as spacial correlation within each data set, are used to create a plurality of compressed output data sets wherein one of the compressed output data sets includes data relating to all of the original uncompressed data sets and wherein each of the remaining output data sets includes data relating only to a particular one of the original uncompressed data sets. Advantageously, the disclosed techniques provide compression ratios approaching those of known vector compression algorithms while simultaneously providing decompression memory usage characteristics analogous to those found in planar compression systems. Thus, exemplary embodiments of the invention simultaneously provide relatively low peak and average memory requirements, corresponding to relatively low memory cost and relatively high data throughput, respectively.
REFERENCES:
patent: 5497434 (1996-03-01), Wilson
Barnes David D.
Chen Kok S.
Apple Computer Inc.
Boudreau Leo H.
Novik Dmitry A.
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