发明名称 Encoding apparatus and method for encoding a codeword representing the number of trailing ones inside a transform sub-block
摘要 <p>Encoding apparatus and method for encoding a codeword representing the number of trailing ones inside a transform sub-block. One of a plurality of VLC tables is selected depending on a context defined by the number of non-zero coefficients in top and left neighbouring sub-blocks. In a particular embodiment, an image is divided into blocks and each block is divided into sub-blocks. The context for a given sub-block of a current block is defined by the number of non-zero coefficients inside the two sub-blocks positioned at the same position inside the left and top neighbouring blocks of said current block. Once the context has been extracted, the selected VLC table gives the correspondence between the number of trailing ones and the codeword to output.</p>
申请公布号 EP2369844(A1) 申请公布日期 2011.09.28
申请号 EP20110161831 申请日期 2005.07.11
申请人 SONY CORPORATION 发明人 SUZUKI, TERUHIKO;ISHIGAYA, KAZUHIRO;YAGASAKI, YOICHO
分类号 H04N19/60;H03M7/40;H03M7/46;H04N19/136;H04N19/423;H04N19/51;H04N19/513;H04N19/625;H04N19/90;H04N19/93 主分类号 H04N19/60
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