Multicodebook source-dependent coding and decoding
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United States of America Patent
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May 21, 2013
Grant Date -
Mar 4, 2010
app pub date -
Nov 29, 2006
filing date -
Nov 29, 2006
priority date (Note) -
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Abstract
A method for coding data, includes: grouping data into frames; classifying the frames into classes; for each class, transforming the frames belonging to the class into filter parameter vectors, which are extracted from the frames by applying a first mathematical transformation; for each class, computing a filter codebook based on the filter parameter vectors belonging to the class; segmenting each frame into subframes; for each class, transforming the subframes belonging to the class into source parameter vectors, which are extracted from the subframes by applying a second mathematical transformation based on the filter codebook computed for the corresponding class; for each class, computing a source codebook based on the source parameter vectors belonging to the class; and coding the data based on the computed filter and source codebooks.
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