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    • 36. 发明授权
    • Moving picture coding method and moving picture decoding method
    • 运动图像编码方法和运动图像解码方法
    • US07308145B2
    • 2007-12-11
    • US10491153
    • 2003-07-22
    • Kiyofumi AbeShinya KadonoSatoshi KondoMakoto Hagai
    • Kiyofumi AbeShinya KadonoSatoshi KondoMakoto Hagai
    • G06T9/00H04N7/32H04N7/64
    • H04N19/105H04N19/103H04N19/117H04N19/134H04N19/137H04N19/139H04N19/147H04N19/159H04N19/172H04N19/174H04N19/176H04N19/177H04N19/18H04N19/182H04N19/42H04N19/46H04N19/573H04N19/577H04N19/58H04N19/593H04N19/61H04N19/70
    • According to a picture coding method of the present invention, a coded picture identified by a picture number is stored, as a reference picture, into a storage unit; commands indicating correspondence between picture numbers and reference indices for designating reference pictures and coefficients used for generation of predictive images are generated; a reference picture being used when motion compensation is performed on a current block in a current picture to be coded is designated by a reference index; a predictive image is generated by performing linear prediction on a block being obtained by motion estimation within the designated reference picture, by use of a coefficient corresponding to the reference index; a coded image signal including a coded signal obtained by coding a prediction error being a difference between the current block in the current picture to be coded and the predictive image, the commands, the reference index and the coefficient is outputted. At that time, information indicating the maximum reference index value is coded and included into the coded image signal, and the commands indicating correspondence between at least one picture number and a plurality of reference indices are generated.
    • 根据本发明的图像编码方法,将由图像号码识别的编码图像作为参考图像存储到存储单元中; 生成用于指定用于生成预测图像的参考图像和系数的图像编号和参考索引之间的对应关系的命令; 通过参考索引来指定对当前要编码的图像中的当前块执行运动补偿时使用的参考图像; 通过使用与参考索引相对应的系数对通过指定参考图片内的运动估计获得的块执行线性预测来生成预测图像; 输出编码图像信号,该编码图像信号包括通过编码作为当前编码图像中的当前块与预测图像之间的差的预测误差获得的编码信号,命令,参考索引和系数。 此时,指示最大参考指标值的信息被编码并包括在编码图像信号中,并且生成指示至少一个图像编号和多个参考索引之间的对应关系的命令。
    • 39. 发明授权
    • Image coding method and image decoding method
    • 图像编码方法和图像解码方法
    • US07126989B2
    • 2006-10-24
    • US10416002
    • 2002-09-11
    • Makoto HagaiShinya Kadono
    • Makoto HagaiShinya Kadono
    • H04N7/12
    • H04N19/86H04N19/117H04N19/14H04N19/156H04N19/159H04N19/162H04N19/172H04N19/174H04N19/176H04N19/182H04N19/46H04N19/527H04N19/61H04N19/82
    • A picture coding apparatus (300) is a picture coding apparatus that codes a difference between picture data (Img) representing an input picture and predictive picture data (Pred) representing a predictive picture for the input picture and generates coded picture data, and includes a picture decoding unit (104) for decoding coded picture data (Img) after the picture data (Img) is coded; inter pixel filters A and B (303 and 304) for performing inter pixel filter operation for decoded picture data (Recon) obtained by the picture decoding unit (104); switches (301 and 302) for selecting one of the inter pixel filters; and an inter picture predicting unit (108) for generating the predictive picture data (Pred) for the input picture data (Img) using filtered decoded picture data (FilteredImg1), as reference picture data (Ref), obtained by the selected inter pixel filter.
    • 图像编码装置(300)是编码表示输入图像的图像数据(Img)与表示输入图像的预测图像的预测图像数据(Pred)之间的差的图像编码装置,生成编码图像数据,并且包括 在图像数据(Img)被编码之后,解码编码图像数据(Img)的图像解码单元(104) 用于对由图像解码单元(104)获得的解码图像数据(Recon)执行像素间滤波操作的像素间滤波器A和B(303和304); 用于选择所述像素间滤波器之一的开关(301和302) 以及帧间图像预测单元,用于使用经过滤波的解码图像数据(FilteredImg 1)作为参考图像数据(Ref)生成用于输入图像数据(Img)的预测图像数据(Pred) 过滤。