发明名称 |
METHOD AND APPARATUS FOR DETERMINING A CONTEXT MODEL FOR TRANSFORM COEFFICIENT LEVEL ENTROPY ENCODING AND DECODING |
摘要 |
Provided are a method and apparatus for determining a context model for entropy encoding and decoding of a transformation coefficient. According to the method and apparatus, a context set index ctxset is obtained based on color component information of a transformation unit, a location of a current subset, and whether there is a significant transformation coefficient having a value greater than a first critical value in a previous subset, and a context offset c1 is obtained based on a length of a previous transformation coefficient having consecutive 1s. Also, a context index ctxids for entropy encoding and decoding of a first critical value flag is determined based on the obtained context set index and the context offset. |
申请公布号 |
EP3145197(A1) |
申请公布日期 |
2017.03.22 |
申请号 |
EP20160197057 |
申请日期 |
2012.10.31 |
申请人 |
Samsung Electronics Co., Ltd. |
发明人 |
PIAO, Yin-ji;MIN, Jung-hye |
分类号 |
H04N19/91 |
主分类号 |
H04N19/91 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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