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    Image coding method, image decoding method, image coding apparatus, image decoding apparatus, image coding and decoding apparatus
    82.
    发明授权
    Image coding method, image decoding method, image coding apparatus, image decoding apparatus, image coding and decoding apparatus 有权
    图像编码方法，图像解码方法，图像编码装置，图像解码装置，图像编码和解码装置

    公开(公告)号：US09008186B2

    公开(公告)日：2015-04-14

    申请号：US14016616

    申请日：2013-09-03

    申请人： Panasonic Intellectual Property Corporation of America

    发明人： Kengo Terada ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toshiyasu Sugio ,  Toru Matsunobu

    IPC分类号： H04N7/12 ,  H04N19/90 ,  H04N19/463 ,  H04N19/70

    CPC分类号： H04N19/196 ,  H04N19/124 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/463 ,  H04N19/70 ,  H04N19/90

    摘要： An image coding method includes: coding (i) coefficient information, (ii) a first flag indicating whether to quantize one or more blocks using quantization, (iii) a second flag indicating whether the plurality of quantization matrices are included in a sequence parameter set, and (iv) a third flag indicating whether the plurality of quantization matrices are included in a picture parameter set; and quantizing the plurality of coefficients, wherein when the one or more blocks are quantized using a plurality of default matrices, the following are coded in the coding: (i) the first flag indicating that the one or more blocks are quantized using the plurality of quantization matrices, (ii) the second flag indicating that the plurality of quantization matrices are not included in the sequence parameter set, and (iii) the third flag indicating that the plurality of quantization matrices are not included in the picture parameter set.

    摘要翻译： 图像编码方法包括：（i）系数信息，（ii）指示是否使用量化来量化一个或多个块的第一标志，（iii）指示所述多个量化矩阵是否包括在序列参数集中的第二标志 ，以及（iv）指示所述多个量化矩阵是否包括在图像参数集中的第三标志; 并且对所述多个系数进行量化，其中当使用多个默认矩阵对所述一个或多个块进行量化时，在所述编码中对以下内容进行编码：（i）指示使用所述多个块来量化所述一个或多个块的所述第一标志 量化矩阵，（ii）指示多个量化矩阵不包括在序列参数集中的第二标志，以及（iii）指示多个量化矩阵不包括在图像参数集中的第三标志。

    IMAGE DECODING METHOD
    83.
    发明申请
    IMAGE DECODING METHOD 有权
    图像解码方法

    公开(公告)号：US20150036748A1

    公开(公告)日：2015-02-05

    申请号：US14516972

    申请日：2014-10-17

    申请人： Panasonic Intellectual Property Corporation of America

    发明人： Toshiyasu Sugio ,  Takahiro Nishi ,  Youji Shibahara ,  Kyoko Tanikawa ,  Hisao Sasai ,  Toru Matsunobu ,  Kengo Terada

    IPC分类号： H04N19/583 ,  H04N19/51

    CPC分类号： H04N19/51 ,  H04N19/107 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61 ,  H04N19/96

    摘要： An image decoding method includes: dividing a current block into sub-blocks; deriving, for each sub-block, one or more prediction information candidates; obtaining an index; and decoding the current block using the prediction information candidate selected by the index. The deriving includes: determining whether a neighboring block neighboring each sub-block is included in the current block, and when not included in the current block, determining the neighboring block to be a reference block available to the sub-block, and when included in the current block, determining the neighboring block not to be the reference block; and deriving a prediction information candidate of the sub-block from prediction information of the reference block; and when the number of prediction information candidates is smaller than a predetermined number, generating one or more new candidates without using the prediction information of the reference block till the number of prediction information candidates reaches the predetermined number.

    摘要翻译： 一种图像解码方法包括：将当前块划分成子块; 为每个子块导出一个或多个预测信息候选; 获得指标; 以及使用由索引选择的预测信息候选来解码当前块。 推导包括：确定当前块中是否包括相邻每个子块的相邻块，并且当不包括在当前块中时，将相邻块确定为可用于子块的参考块，并且当被包括在 当前块，确定相邻块不是参考块; 以及从所述参考块的预测信息导出所述子块的预测信息候选; 并且当预测信息候选的数量小于预定数量时，生成一个或多个新的候选，而不使用参考块的预测信息，直到预测信息候选者的数量达到预定数量。

    THREE-DIMENSIONAL DATA ENCODING METHOD, THREE-DIMENSIONAL DATA DECODING METHOD, THREE-DIMENSIONAL DATA ENCODING DEVICE, AND THREE-DIMENSIONAL DATA DECODING DEVICE
    87.
    发明公开
    THREE-DIMENSIONAL DATA ENCODING METHOD, THREE-DIMENSIONAL DATA DECODING METHOD, THREE-DIMENSIONAL DATA ENCODING DEVICE, AND THREE-DIMENSIONAL DATA DECODING DEVICE 审中-公开

    公开(公告)号：US20240273774A1

    公开(公告)日：2024-08-15

    申请号：US18643410

    申请日：2024-04-23

    申请人： Panasonic Intellectual Property Corporation of America

    发明人： Toshiyasu Sugio ,  Noritaka Iguchi

    IPC分类号： G06T9/40

    CPC分类号： G06T9/40

    摘要： A three-dimensional data encoding method includes: assigning three-dimensional points to one of layers, based on items of geometry information of the three-dimensional points; searching three-dimensional points surrounding a current three-dimensional point to be encoded, to select, from the three-dimensional points, a three-dimensional point to be referred to when a predicted value of attribute information of the current three-dimensional point is calculated, the current three-dimensional point belonging to a first layer among the layers; and calculating the predicted value of the attribute information of the current three-dimensional point using the three-dimensional point selected. In the searching of the three-dimensional points, a search range for a same layer as the current three-dimensional point is different from a search range for a layer higher than the first layer.

    THREE-DIMENSIONAL DATA ENCODING METHOD, THREE-DIMENSIONAL DATA DECODING METHOD, THREE-DIMENSIONAL DATA ENCODING DEVICE, AND THREE-DIMENSIONAL DATA DECODING DEVICE
    89.
    发明公开
    THREE-DIMENSIONAL DATA ENCODING METHOD, THREE-DIMENSIONAL DATA DECODING METHOD, THREE-DIMENSIONAL DATA ENCODING DEVICE, AND THREE-DIMENSIONAL DATA DECODING DEVICE 审中-公开

    公开(公告)号：US20240177357A1

    公开(公告)日：2024-05-30

    申请号：US18435478

    申请日：2024-02-07

    申请人： Panasonic Intellectual Property Corporation of America

    发明人： Noritaka IGUCHI ,  Toshiyasu Sugio

    IPC分类号： G06T9/40

    CPC分类号： G06T9/40

    摘要： A three-dimensional data encoding method includes: encoding geometry information of each of three-dimensional points based on one of a first geometry information encoding method of encoding using octree division and a second geometry information encoding method of encoding without using octree division; and generating a bitstream including the geometry information encoded and a geometry information flag indicating whether the encoding was performed based on the first geometry information encoding method or the second geometry information encoding method. In the generating of the bitstream: when the encoding is performed based on the first geometry information encoding method, the bitstream including a parameter set used in octree division is generated; and when the encoding is performed based on the second geometry information encoding method, the bitstream not including the parameter set used for octree division is generated.