发明名称 |
ADVANCED ARITHMETIC CODER |
摘要 |
An example method of entropy coding video data includes obtaining a pre-defined initialization value for a context of a plurality of contexts used in a context-adaptive entropy coding process to entropy code a value for a syntax element in a slice of the video data, wherein the pre-defined initialization value is stored with N-bit precision; determining, using a look-up table and based on the pre-defined initialization value, an initial probability state of the context for the slice of the video data, wherein a number of possible probability states for the context is greater than two raised to the power of N; and entropy coding, based on the initial probability state of the context, a bin of the value for the syntax element. |
申请公布号 |
US2016353108(A1) |
申请公布日期 |
2016.12.01 |
申请号 |
US201615166068 |
申请日期 |
2016.05.26 |
申请人 |
QUALCOMM Incorporated |
发明人 |
Zhang Li;Chen Jianle;Zhao Xin;Li Xiang;Liu Hongbin;Chen Ying;Karczewicz Marta |
分类号 |
H04N19/126;H04N19/174;H04N19/139;H04N19/13 |
主分类号 |
H04N19/126 |
代理机构 |
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代理人 |
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主权项 |
1. A method of entropy coding video data, the method comprising:
obtaining a pre-defined initialization value for a context of a plurality of contexts used in a context-adaptive entropy coding process to entropy code a value for a syntax element in a slice of the video data, wherein the pre-defined initialization value is stored with N-bit precision; determining, based on the pre-defined initialization value, an initial probability state of the context for the slice of the video data, wherein a number of possible probability states for the context is greater than two raised to the power of N; and entropy coding, based on the initial probability state of the context, a bin of the value for the syntax element. |
地址 |
San Diego CA US |