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    Video decoder and video decoding method
    4.
    发明公开
    Video decoder and video decoding method 失效
    视频解码器和视频解码方法

    公开(公告)号：EP2252067A3

    公开(公告)日：2011-02-02

    申请号：EP10008596.8

    申请日：1997-10-23

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

    发明人： Sekiguchi, Shunichi ,  Asai, Kohtaro ,  Murakami, Tokumichi ,  Nishikawa, Hirofumi ,  Kuroda, Shinichi ,  Isu, Yoshimi ,  Hasegawa, Yuri

    IPC分类号： H04N7/32 ,  H04N7/26

    CPC分类号： H04N19/523 ,  H04N19/53 ,  H04N19/537 ,  H04N19/61

    摘要： It is an object of the invention to obtain a video decoder performing a highly accurate prediction of a picture, transformed by other than translation, within a short processing time in a small-scaled circuit. A video encoder for performing compression encoding of an input picture includes motion compensated prediction means for performing interframe motion detection. The motion compensated prediction means has a motion detector including a transformed block matching unit for transforming a reference picture portion into a picture portion having a predefined shape for performing motion detection and a motion compensator including a corresponding pel determinator for determining integer pels of real sample points of the transformed reference picture portion corresponding to an integer pel of the input picture block according to the motion parameters supplied from the motion detector as a result of the comparison so as to supply prediction picture data. The video encoder can be combined with a video decoder having a motion compensator which performs the same operations as those in the video encoder to configure a video encoding and decoding system. The video decoder uses half-pels of the reference picture in the motion compensator as well as integer pels, computes pel positions using plural motion vectors, and transforms the obtained pel value into a predefined form by the transformation pattern.

    摘要翻译： 本发明的一个目的是获得一种视频解码器，该视频解码器在小规模电路中的短处理时间内执行高度精确的图像预测，通过除翻译以外的方式进行变换。 用于执行输入图像的压缩编码的视频编码器包括用于执行帧间运动检测的运动补偿预测装置。 运动补偿预测装置具有运动检测器，该运动检测器包括用于将参考图片部分变换成具有用于执行运动检测的预定义形状的图片部分的变换块匹配单元和包括用于确定实样本点的整数像素的对应像元确定器的运动补偿器 作为比较的结果，根据作为比较结果的从运动检测器提供的运动参数，对应于输入图像块的整数像素的变换的参考图像部分的位置，以提供预测图像数据。 视频编码器可以与具有运动补偿器的视频解码器组合，该运动补偿器执行与视频编码器中的那些相同的操作以配置视频编码和解码系统。 视频解码器使用运动补偿器中的参考图片的半像素以及整数像素，使用多个运动矢量来计算像素位置，并且通过变换图案将所获得的像素值变换成预定形式。

    Video decoding method
    6.
    发明公开
    Video decoding method 失效
    Videodekodierverfahren

    公开(公告)号：EP2252068A2

    公开(公告)日：2010-11-17

    申请号：EP10008597.6

    申请日：1997-10-23

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

    发明人： Sekiguchi, Shunichi ,  Arai, Shintaro ,  Murakami, Tokumichi ,  Nishikawa, Hirofumi ,  Kuroda, Shinichi ,  Isu, Yoshimi ,  Hasegawa, Yuri

    IPC分类号： H04N7/32 ,  H04N7/26

    CPC分类号： H04N19/523 ,  H04N19/53 ,  H04N19/537 ,  H04N19/61

    摘要： It is an object of the invention to obtain a video decoding method performing a highly accurate prediction of a picture, transformed by other than translation, within a short processing time in a small- scaled circuit. A video encoder for performing compression encoding of an input picture includes motion compensated prediction means for performing interframe motion detection. The motion compensated prediction means has a motion detector including a transformed block matching unit for transforming a reference picture portion into a picture portion having a predefined shape for performing motion detection and a motion compensator including a corresponding pel determinator for determining integer pels of real sample points of the transformed reference picture portion corresponding to an integer pel of the input picture block according to the motion parameters supplied from the motion detector as a result of the comparison so as to supply prediction picture data. The video encoder can be combined with a video decoder having a motion compensator which performs the same operations as those in the video encoder to configure a video encoding and decoding system. The video decoder uses half-pels of the reference picture in the motion compensator as well as integer pels, computes pel positions using plural motion vectors, and transforms the obtained pel value into a predefined form by the transformation pattern.

    摘要翻译： 本发明的一个目的是获得在小规模电路的短处理时间内执行除了转换以外的变换的高精度预测的视频解码方法。 用于执行输入图像的压缩编码的视频编码器包括用于执行帧间运动检测的运动补偿预测装置。 运动补偿预测装置具有运动检测器，其包括用于将参考图像部分变换成具有用于执行运动检测的预定形状的图像部分的变换块匹配单元和包括用于确定实际采样点的整数像素的对应像素确定器的运动补偿器 根据由运动检测器提供的运动参数作为比较结果，对应于输入图像块的整数的变换的参考图像部分，以提供预测图像数据。 视频编码器可以与具有运动补偿器的视频解码器组合，运动补偿器执行与视频编码器相同的操作以配置视频编码和解码系统。 视频解码器使用运动补偿器中的参考图像的半像素以及整数像素，使用多个运动矢量计算像素位置，并且通过变换图案将获得的像素值变换为预定义的形式。

    Video decoding method
    7.
    发明公开
    Video decoding method 失效
    视频解码方法

    公开(公告)号：EP2252065A2

    公开(公告)日：2010-11-17

    申请号：EP10008594.3

    申请日：1997-10-23

    申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

    发明人： Sekiguchi, Shunichi ,  Asai, Kohtaro ,  Murakami, Tokumichi ,  Nishikawa, Hirofumi ,  Kuroda, Shinichi ,  Isu, Yoshimi ,  Hasegawa, Yuri

    IPC分类号： H04N7/32 ,  H04N7/26

    CPC分类号： H04N19/523 ,  H04N19/53 ,  H04N19/537 ,  H04N19/61

    摘要： It is an object of the invention to obtain a video decoding method performing a highly accurate prediction of a picture, transformed by other than translation, within a short processing time in a small-scaled circuit. A video encoder for performing compression encoding of an input picture includes motion compensated prediction means for performing interframe motion detection. The motion compensated prediction means has a motion detector including a transformed block matching unit for transforming a reference picture portion into a picture portion having a predefined shape for performing motion detection and a motion compensator including a corresponding pel determinator for determining integer pels of real sample points of the transformed reference picture portion corresponding to an integer pel of the input picture block according to the motion parameters supplied from the motion detector as a result of the comparison so as to supply prediction picture data. The video encoder can be combined with a video decoder having a motion compensator which performs the same operations as those in the video encoder to configure a video encoding and decoding system. The video decoder uses half-pels of the reference picture in the motion compensator as well as integer pels, computes pel positions using plural motion vectors, and transforms the obtained pel value into a predefined form by the transformation pattern.

    摘要翻译： 本发明的一个目的是获得一种视频解码方法，该方法在小规模电路中在短处理时间内执行高度精确的预测由非翻译变换的图片。 用于执行输入图像的压缩编码的视频编码器包括用于执行帧间运动检测的运动补偿预测装置。 运动补偿预测装置具有运动检测器，该运动检测器包括用于将参考图片部分变换成具有用于执行运动检测的预定义形状的图片部分的变换块匹配单元和包括用于确定实样本点的整数像素的对应像元确定器的运动补偿器 作为比较的结果，根据作为比较结果的从运动检测器提供的运动参数，对应于输入图像块的整数像素的变换的参考图像部分的位置，以提供预测图像数据。 视频编码器可以与具有运动补偿器的视频解码器组合，该运动补偿器执行与视频编码器中的那些相同的操作以配置视频编码和解码系统。 视频解码器使用运动补偿器中的参考图片的半像素以及整数像素，使用多个运动矢量来计算像素位置，并且通过变换图案将所获得的像素值变换成预定形式。

    Image decoding apparatus and method
    10.
    发明公开
    Image decoding apparatus and method 失效
    Vorrichtung und Verfahren zur Bilddekodierung

    公开(公告)号：EP2094013A1

    公开(公告)日：2009-08-26

    申请号：EP09007713.2

    申请日：1997-10-23

    申请人： Mitsubishi Denki Kabushiki Kaisha

    发明人： Isu, Yoshimi ,  Sekiguchi, Shunichi ,  Asai, Kohtaro ,  Nishikawa, Hirofumi ,  Kuroda, Shinichi ,  Hasegawa, Yuri

    IPC分类号： H04N7/24 ,  H04N7/26 ,  H04N7/50

    CPC分类号： H04N21/4385 ,  H04N19/00 ,  H04N19/12 ,  H04N19/136 ,  H04N19/20 ,  H04N19/40 ,  H04N19/44 ,  H04N19/51 ,  H04N19/513 ,  H04N19/517 ,  H04N19/61 ,  H04N19/70 ,  H04N21/234318 ,  H04N21/2389 ,  H04N21/44012 ,  H04N21/440218

    摘要： An image decoding apparatus for decoding at least a first coded bit stream into which header information of the H.263 coding scheme and image coded data encoded in the H.263 coding scheme are multiplexed, or for decoding a second coded bit stream into which header information of the MPEG-4 coding scheme and image coded data encoded in the MPEG-4 coding scheme are multiplexed,
    the image decoding apparatus comprising: coding scheme decision means for making a decision as to whether a received coded bit stream is the first coded bit stream or the second coded bit stream in response to the first header information or to the second header information; and
    a switch for switching an AC coefficient decoding process using an escape code according to the received first coded bit stream and the received second coded bit stream
    wherein
    when the first coded bit stream is received and the escape code is then detected during the decoding of the AC coefficient, the AC coefficient coded data following to the escape code is decoded per fixed coded length,
    when the second coded bit stream is received and the escape code is then detected during the decoding of the AC coefficient, the AC coefficient coded data is decoded either per variable length coding or per fixed length coding.

    摘要翻译： 一种图像解码装置，用于对至少第一编码比特流进行解码，其中将H.263编码方案的头部信息和在H.263编码方案中编码的图像编码数据复用到其中，或用于对第二编码比特流进行解码， MPEG-4编码方式的信息和MPEG-4编码方式中编码的图像编码数据被复用，该图像解码装置包括：编码方案决定装置，用于作出关于接收的编码比特流是否是第一编码比特 流或第二编码比特流，以响应于第一标题信息或第二标题信息; 以及用于根据接收到的第一编码比特流和接收到的第二编码比特流使用转义码切换AC系数解码处理的开关，其中当接收到第一编码比特流时，然后在解码期间检测到转义码 AC系数时，对于每个固定编码长度对转义码后面的AC系数编码数据进行解码，当接收到第二编码比特流并在AC系数的解码期间检测到转义码时，对AC系数编码数据进行解码 每个可变长度编码或每个固定长度编码。