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    MOVING IMAGE DECODING APPARATUS, MOVING IMAGE CODING APPARATUS, MOVING IMAGE DECODING CIRCUIT, AND MOVING IMAGE DECODING METHOD
    3.
    发明申请
    MOVING IMAGE DECODING APPARATUS, MOVING IMAGE CODING APPARATUS, MOVING IMAGE DECODING CIRCUIT, AND MOVING IMAGE DECODING METHOD 审中-公开
    移动图像解码设备，移动图像编码设备，移动图像解码电路和移动图像解码方法

    公开(公告)号：US20150172723A1

    公开(公告)日：2015-06-18

    申请号：US14629747

    申请日：2015-02-24

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Hiroshi AMANO ,  Takeshi TANAKA ,  Takashi HASHIMOTO ,  Yoshiteru HAYASHI

    IPC: H04N19/82 ,  H04N19/513

    CPC classification number: H04N19/82 ,  H04N19/117 ,  H04N19/43 ,  H04N19/44 ,  H04N19/513 ,  H04N19/61

    Abstract: A moving image decoding apparatus which enables reduction in the memory bandwidth and the memory access latency for the motion compensation filter coefficients for use in inter-picture prediction involving motion compensation using variable coefficients includes: a decoding unit (101) which decodes, from a coded stream, a plurality of motion compensation filter coefficients; a memory (109) for holding the motion compensation filter coefficients included in the coded stream; a filter coefficient storage unit (103) for holding at least one of the motion compensation filter coefficients which is required for the motion compensation; a motion compensation unit (107) which performs motion compensation using the required motion compensation filter coefficient held in the filter coefficient storage unit; and a filter coefficient transfer control unit (102) which writes, in the memory, the motion compensation filter coefficients decoded by the decoding unit, and transfers the required motion compensation filter coefficient from the memory to the filter coefficient storage unit, only when the required coefficient is not yet stored therein.

    Abstract translation: 一种运动图像解码装置，其能够减少使用可变系数的运动补偿的帧间预测中使用的运动补偿滤波器系数的存储器带宽和存储器访问等待时间，包括：解码单元， 流，多个运动补偿滤波器系数; 用于保持包含在编码流中的运动补偿滤波器系数的存储器（109） 滤波器系数存储单元，用于保持运动补偿所需的运动补偿滤波器系数中的至少一个; 使用保持在滤波器系数存储单元中的所需运动补偿滤波器系数进行运动补偿的运动补偿单元（107） 以及滤波器系数传递控制单元（102），其在存储器中写入由解码单元解码的运动补偿滤波器系数，并且将所需的运动补偿滤波器系数从存储器传送到滤波器系数存储单元，只有当所需的 系数尚未存储在其中。

    IMAGE CODING DEVICE, IMAGE CODING METHOD, AND IMAGE CODING INTEGRATED CIRCUIT
    4.
    发明申请
    IMAGE CODING DEVICE, IMAGE CODING METHOD, AND IMAGE CODING INTEGRATED CIRCUIT 审中-公开
    图像编码装置，图像编码方法和图像编码集成电路

    公开(公告)号：US20150085918A1

    公开(公告)日：2015-03-26

    申请号：US14555825

    申请日：2014-11-28

    Applicant: Panasonic Intellectual Property Management Co., Ltd.

    Inventor： Hiroshi AMANO ,  Takeshi TANAKA ,  Masaki MAEDA ,  Kenjiro TSUDA ,  Masayasu IGUCHI ,  Youji SHIBAHARA

    IPC: H04N19/139 ,  H04N19/436 ,  H04N19/43 ,  H04N19/105 ,  H04N19/176

    CPC classification number: H04N19/139 ,  H04N19/105 ,  H04N19/109 ,  H04N19/137 ,  H04N19/176 ,  H04N19/43 ,  H04N19/436 ,  H04N19/51 ,  H04N19/52 ,  H04N19/61

    Abstract: When compression encoding processing of an image is performed in units of macroblocks using a pipeline structure, an application of a skip mode or the like according to MPEG4AVC to compression encode an encoding target block requires motion vectors and the like of adjacent blocks of the encoding target block. However, depending on a structure of the pipeline stages, the motion vectors may not be determined. In such cases, the skip mode cannot be applied to compression encode the encoding target block. This problem can be solved by (i) calculating all motion information candidates, of the encoding target block, corresponding to all motion information selectable by a previous block of the encoding target block, and (ii) selecting, as the motion information of the encoding target block in the skip mode, the motion information corresponding to the motion information determined for the previous block.

    Abstract translation: 当使用流水线结构以宏块为单位执行图像的压缩编码处理时，根据MPEG4AVC的跳过模式等的应用对编码对象块进行压缩编码需要编码对象的相邻块的运动矢量等 块。 然而，根据流水线级的结构，可能不确定运动矢量。 在这种情况下，跳过模式不能应用于编码目标块的压缩编码。 该问题可以通过以下步骤来解决：（i）计算编码目标块的所有运动信息候选，对应于由编码目标块的先前块选择的所有运动信息，以及（ii）选择编码对象块的运动信息 在跳过模式中的目标块，对应于针对前一块确定的运动信息的运动信息。

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