Wavelet transform coding method
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United States of America Patent
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Aug 12, 1997
Issued Date -
N/A
app pub date -
Feb 14, 1996
filing date -
Feb 18, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved coding performance for wavelet transform coding. The method comprises: two-dimensional wavelet transforming an input picture signal to output transform coefficients; two-dimensionally arranging the transform coefficients; quantizing the arranged transform coefficients; choosing a scanning pattern for the quantized transform coefficients based on the correlation between these coefficients; generating a one-dimensional signal series by scanning the transform coefficients after they are quantized according to a scanning pattern decided in the above step; coding the one-dimensional signal series; and, finally, terminating the coding of the signal series using a symbol indicating the end of scanning.
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