Picture coding device and picture decoding device
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United States of America Patent
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-
Mar 4, 2003
Grant Date -
N/A
app pub date -
Oct 25, 1999
filing date -
Feb 5, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
If coding is carried out on the block basis on subband coding of an image, the hierarchical characteristic which a subband image inherently has would be lost. Thus, efficient coding is to be carried out while holding the hierarchical characteristic of the subband image. After the subband image is coded on the block basis, symbol information and coefficient information are decomposed and relocated for every subband before producing coded data.
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