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Video encoding method and apparatus, video decoding method and apparatus including quantization parameter prediction of hierarchical data unit
Video encoding method and apparatus, video decoding method and apparatus including quantization parameter prediction of hierarchical data unit
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机译:包括分层数据单元的量化参数预测的视频编码方法和装置,视频解码方法和装置
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摘要
A method of decoding a video includes obtaining syntax for determining an initial value of a quantization parameter (QP) used to perform inverse quantization on coding units included in a slice segment, from a bitstream; obtaining a slice-level initial QP for predicting the QP used to perform inverse quantization on the coding units included in the slice segment, based on the obtained syntax; and obtaining a predicted QP of a first quantization group of a parallel-decodable data unit included in the slice segment, by using the slice-level initial QP.
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