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    • 16. 发明授权
    • Method and apparatus for encoding and decoding image by using large transformation unit
    • 通过使用大变换单元对图像进行编码和解码的方法和装置
    • US08971649B2
    • 2015-03-03
    • US14299131
    • 2014-06-09
    • Samsung Electronics Co., Ltd.
    • Tammy LeeWoo-jin HanJianle ChenHae-kyung Jung
    • G06K9/36G06T9/00H04N19/119H04N19/122H04N19/176H04N19/61H04N19/107H04N19/70H04N19/96
    • H04N19/625G06T9/00H04N19/107H04N19/119H04N19/122H04N19/169H04N19/176H04N19/61H04N19/70H04N19/96
    • An image decoding method including determining coding units having a hierarchical structure for decoding an image using split information of a coding unit, determining at least one prediction unit for predicting a coding unit among the coding units using information about a partition type, determining at least one transformation unit for inversely transforming the coding unit using split information of the at least one transformation unit, wherein the split information of a coding unit, the information about a partition type and the information about a depth of the at least one transformation unit are parsed from a bitstream, parsing from the bitstream transformation coefficients generated by transformation according to the at least one transformation unit generated by dividing the coding unit, reconstructing residual of the at least one transformation unit by performing inverse quantization and inverse transformation on the parsed transformation coefficients, and performing intra prediction or inter prediction on the prediction unit to generate a predictor, and reconstructs the image based on the residual and the predictor.
    • 一种图像解码方法,包括确定具有用于使用编码单元的分割信息对图像进行解码的分层结构的编码单元,使用关于分区类型的信息确定用于在编码单元中预测编码单元的至少一个预测单元,确定至少一个 变换单元,用于使用所述至少一个变换单元的分割信息对所述编码单元进行逆变换,其中编码单元的分割信息,关于分割类型的信息和关于所述至少一个变换单元的深度的信息被从 比特流,根据通过对编码单元进行分割而生成的至少一个变换单元,通过变换生成的比特流变换系数进行解析,对解析变换系数进行逆量化和逆变换,对至少一个变换单位的残差进行重构;以及 执行内部预处理 对预测单元进行预测或帧间预测以生成预测器,并且基于残差和预测器来重建图像。