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METHOD AND APPARATUS FOR DETERMINING CONTEXT MODEL OF TRANSFORM COEFFICIENT LEVEL IN ENTROPY CODING AND DECODING
METHOD AND APPARATUS FOR DETERMINING CONTEXT MODEL OF TRANSFORM COEFFICIENT LEVEL IN ENTROPY CODING AND DECODING
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机译:确定熵编码和解码中变换系数水平的上下文模型的方法和装置
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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 cl 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.
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