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    Moving picture coding method and moving picture decoding method
    62.
    发明授权
    Moving picture coding method and moving picture decoding method 有权
    运动图像编码方法和运动图像解码方法

    公开(公告)号：US07308145B2

    公开(公告)日：2007-12-11

    申请号：US10491153

    申请日：2003-07-22

    申请人： Kiyofumi Abe ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai

    发明人： Kiyofumi Abe ,  Shinya Kadono ,  Satoshi Kondo ,  Makoto Hagai

    IPC分类号： G06T9/00 ,  H04N7/32 ,  H04N7/64

    CPC分类号： H04N19/105 ,  H04N19/103 ,  H04N19/117 ,  H04N19/134 ,  H04N19/137 ,  H04N19/139 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/177 ,  H04N19/18 ,  H04N19/182 ,  H04N19/42 ,  H04N19/46 ,  H04N19/573 ,  H04N19/577 ,  H04N19/58 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70

    摘要： 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.

    摘要翻译： 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。

    Motion Image Encoding Method and Motion Image Decoding Method
    63.
    发明申请
    Motion Image Encoding Method and Motion Image Decoding Method 有权
    运动图像编码方法和运动图像解码方法

    公开(公告)号：US20070206679A1

    公开(公告)日：2007-09-06

    申请号：US11659723

    申请日：2005-09-06

    申请人： Chong Lim ,  Sheng Shen ,  Shinya Kadono

    发明人： Chong Lim ,  Sheng Shen ,  Shinya Kadono

    IPC分类号： H04N11/04

    CPC分类号： H04N19/00 ,  H04N19/122 ,  H04N19/137 ,  H04N19/147 ,  H04N19/176

    摘要： It is an object of the present invention to provide a video coding method and a video decoding method which allow enhancement of coding efficiency and improvement in video quality. A video coding apparatus (100) includes: a mode determination unit (111) which determines a notification method for notifying a transform block size to be used in orthogonal transform of a current block to be either the implicit mode or the explicit mode, and outputs the ABT mode indicating the determined notification method; an orthogonal transformation unit (104) which transforms the difference values between the input image and predicted image into frequency coefficients based on the transform block size determined in accordance with the determined notification method; a quantization unit (105) which quantizes the frequency coefficients and output the quantized values; and a variable length coding unit (110) which performs variable length coding on the quantized values, the ABT mode, and the like, so as to output a coded stream.

    摘要翻译： 本发明的目的是提供一种视频编码方法和视频解码方法，其能够提高编码效率和提高视频质量。 视频编码装置（100）包括：模式确定单元（111），其确定用于将当前块的正交变换中使用的变换块大小通知为隐式模式或显式模式的通知方法，并且输出 指示确定的通知方法的ABT模式; 基于根据所确定的通知方法确定的变换块大小，将输入图像与预测图像之间的差分值变换为频率系数的正交变换单元（104） 量化单元（105），其量化所述频率系数并输出所述量化值; 以及对量化值ABT模式等进行可变长度编码的可变长度编码单元（110），以输出编码流。

    Variable-length encoding method, variable-length decoding method, storage medium, variable-length encoding device, variable-length decoding device, and bit stream
    64.
    发明授权
    Variable-length encoding method, variable-length decoding method, storage medium, variable-length encoding device, variable-length decoding device, and bit stream 有权
    可变长度编码方法，可变长度解码方法，存储介质，可变长度编码装置，可变长度解码装置，以及比特流

    公开(公告)号：US07248190B2

    公开(公告)日：2007-07-24

    申请号：US11368437

    申请日：2006-03-07

    申请人： Shinya Kadono ,  Yoshinori Matsui ,  Satoshi Kondo

    发明人： Shinya Kadono ,  Yoshinori Matsui ,  Satoshi Kondo

    IPC分类号： H03M7/40

    CPC分类号： H03M7/4006 ,  H03M7/42 ,  H04N19/46 ,  H04N19/70 ,  H04N19/91

    摘要： The present invention correctly decodes data encoded with a variable-length encoding method that improves the compression ratio. The variable-length encoding method encodes a unit data composed of a plurality of sub-data while referencing a parameter table, and includes: an initialization step in which the parameter table is set to initial values; a parameter table information encoding step in which information related to the initialized parameter table is encoded; a parameter obtaining step in which encoding parameters to be used in the encoding of sub-data are obtained from the parameter table; a sub-data encoding step in which variable-length encoding of the sub-data is performed with reference to the obtained encoding parameters; and an encoded information placement step in which the encoded information is placed in a position in which the information can be obtained before the encoded unit data.

    摘要翻译： 本发明可以正确地解码用改进压缩率的可变长度编码方法编码的数据。 可变长度编码方法在引用参数表的同时对由多个子数据构成的单位数据进行编码，并且包括：初始化步骤，其中参数表被设置为初始值; 参数表信息编码步骤，其中与所述初始化参数表相关的信息被编码; 参数获取步骤，其中从参数表获得用于子数据编码的编码参数; 子数据编码步骤，其中参照所获得的编码参数执行子数据的可变长度编码; 以及编码信息放置步骤，其中编码信息被放置在可以在编码单元数据之前获得信息的位置。

    Stream generation apparatus, stream generation method, coding apparatus, coding method, recording medium and program thereof
    65.
    发明申请
    Stream generation apparatus, stream generation method, coding apparatus, coding method, recording medium and program thereof 有权
    流生成装置，流生成方法，编码装置，编码方法，记录介质及程序

    公开(公告)号：US20070116426A1

    公开(公告)日：2007-05-24

    申请号：US10580468

    申请日：2005-04-25

    申请人： Tadamasa Toma ,  Tomoyuki Okada ,  Hiroshi Yahata ,  Shinya Kadono

    发明人： Tadamasa Toma ,  Tomoyuki Okada ,  Hiroshi Yahata ,  Shinya Kadono

    IPC分类号： H04N5/91

    CPC分类号： H04N5/783 ,  G11B27/005 ,  G11B27/034 ,  G11B27/105 ,  G11B27/329 ,  G11B2220/2541 ,  G11B2220/2562 ,  G11B2220/2579 ,  G11B2220/61 ,  H04N9/8042 ,  H04N9/8063 ,  H04N9/8205

    摘要： A stream generation apparatus of the present invention is a stream generation apparatus which generates a stream including coded pictures and a command for managing a buffer which holds a decoded picture, the command being added to one of the coded pictures as a reference picture. It includes a judging unit which judges whether or not the coded picture to which the command is added is skipped at the time of trick-play, an adding unit which adds, in the case where the coded picture is judged to be skipped, repetition information indicating the same contents as the command to another coded picture that follows, in decoding order, the coded picture judged to be skipped and that is not skipped at the time of the trick-play, and a generating unit which generates the stream including the coded pictures, the command and the repetition information.

    摘要翻译： 本发明的流生成装置是生成包含编码图像的流的流生成装置和用于管理保存解码图像的缓冲器的命令，该命令被添加到编码图像之一作为参考图像。 它包括判断单元，判断单元是否在特技播放时跳过添加了该命令的编码图像;加法单元，其在判断为跳过编码图像的情况下，添加重复信息 以与解码顺序相对应的下一个编码图像的命令相同的内容，判断为跳过的编码图像，并且在特技播放时不被跳过的编码图像，以及生成单元，其生成包括编码 图片，命令和重复信息。

    Encoding mode deciding apparatus, image encoding apparatus, encoding mode deciding method, and encoding mode deciding program
    66.
    发明申请
    Encoding mode deciding apparatus, image encoding apparatus, encoding mode deciding method, and encoding mode deciding program 有权
    编码模式决定装置，图像编码装置，编码模式决定方法以及编码模式决定程序

    公开(公告)号：US20070002948A1

    公开(公告)日：2007-01-04

    申请号：US10563357

    申请日：2004-07-23

    申请人： Youji Shibahara ,  Shinya Kadono

    发明人： Youji Shibahara ,  Shinya Kadono

    IPC分类号： H04N7/12 ,  H04N11/04 ,  H04B1/66 ,  H04N11/02

    CPC分类号： H04N19/146 ,  H04N19/51 ,  H04N19/523 ,  H04N19/57

    摘要： The invention provides a coding mode determining apparatus that enables selection of an appropriate coding mode with a smaller processing amount. This coding mode determining apparatus is an apparatus that determines at least one of a plurality of candidate coding modes of an image block. A full-pel prediction step (S41) derives a coding cost of each of the coding modes, based on motion estimation with integer pixel accuracy for small blocks, which are partitions of the image block that are obtained with the division methods of each of the coding modes. A candidate division method selecting step (S42) selects a subset of candidate division methods of a plurality of coding modes, based on the coding costs derived by the full-pel prediction step (S41). A sub-pel prediction step (S43) derives a coding cost of each of the candidate division methods, based on motion estimation with non-integer pixel accuracy for the small blocks obtained with at least a subset of the subset of candidate division methods. A division method determining step (S44) determines a division method of the image block, based on the coding costs derived by the sub-pel prediction step (S43).

    摘要翻译： 本发明提供一种编码模式确定装置，其能够以较小的处理量选择适当的编码模式。 该编码模式确定装置是确定图像块的多个候选编码模式中的至少一个的装置。 全像素预测步骤（S41）基于用于小块的整数像素精度的运动估计来导出每个编码模式的编码成本，该小块是使用每个编码模式的分割方法获得的图像块的分区 编码模式。 候选分割方法选择步骤（S42）基于由全像素预测步骤导出的编码成本，选择多种编码模式的候选分割方法的子集（S41）。 子像素预测步骤（S 43）基于用候选分割方法的子集的至少子集获得的小块的非整数像素精度的运动估计，导出每个候选分割方法的编码成本。 分割方法确定步骤（S44）基于由子像素预测步骤导出的编码成本来确定图像块的分割方法（S43）。

    Image coding method and image decoding method
    69.
    发明授权
    Image coding method and image decoding method 有权
    图像编码方法和图像解码方法

    公开(公告)号：US07126989B2

    公开(公告)日：2006-10-24

    申请号：US10416002

    申请日：2002-09-11

    申请人： Makoto Hagai ,  Shinya Kadono

    发明人： Makoto Hagai ,  Shinya Kadono

    IPC分类号： H04N7/12

    CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/14 ,  H04N19/156 ,  H04N19/159 ,  H04N19/162 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/46 ,  H04N19/527 ,  H04N19/61 ,  H04N19/82

    摘要： 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.

    摘要翻译： 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。