发明名称 Variable length coding for clustered transform coefficients in video compression
摘要 Coding quantized transform coefficients as occur in image compression combines a position identifying method to identify the relative position of clusters of consecutive non-zero-valued coefficients, an amplitude event identifying method to identify amplitude events in the clusters of non-zero-valued coefficients, and a coding method to code the position events, amplitude events, and signs of the amplitudes in the clusters. The method is particularly applicable to a series of quantized transform coefficients where clusters are likely to occur.
申请公布号 US7680349(B2) 申请公布日期 2010.03.16
申请号 US20060385183 申请日期 2006.03.20
申请人 CISCO TECHNOLOGY, INC. 发明人 CHEN WEN-HSIUNG;WU FANG;TOEBES JOHN A.;ROSENFELD DOV;PELTON GREGORY D.
分类号 G06K9/36 主分类号 G06K9/36
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