公开(公告)号：US20160112726A1

公开(公告)日：2016-04-21

申请号：US14967437

申请日：2015-12-14

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Hisao SASAI ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Toshiyasu SUGIO ,  Kyoko TANIKAWA ,  Toru MATSUNOBU

IPC: H04N19/91 ,  H04N19/593 ,  H04N19/103 ,  H04N19/176 ,  H04N19/186

CPC classification number: H04N19/91 ,  H04N19/103 ,  H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/593 ,  H04N19/70

Abstract: The image decoding method includes: determining a context for use in a current block to be processed, from among a plurality of contexts; and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context, wherein in the determining: the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block; and the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type, and the second type is “intra_chroma_pred_mode”.

Abstract translation: 图像解码方法包括：从多个上下文中确定要处理的当前块中使用的上下文; 以及使用所确定的上下文对与当前块相对应的比特序列执行算术解码，其中在所述确定中：在使用当前块的相邻块的控制参数的条件下确定所述上下文，当所述信号类型为 第一类型，相邻块是当前块的左块和上块; 并且当信号类型是第二类型而第二类型是“intra_chroma_pred_mode”时，在不使用上部块的控制参数的条件下确定上下文。

公开(公告)号：US20160088312A1

公开(公告)日：2016-03-24

申请号：US14957886

申请日：2015-12-03

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toshiyasu SUGIO ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Hisao SASAI

IPC: H04N19/52 ,  H04N19/44 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/105

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/52

Abstract: A motion vector calculation method which attains a higher compression rate, includes: a selection step of selecting one of at least one reference motion vector of a reference block; and a calculation step of calculating a motion vector of a current block to be processed, using the one reference motion vector selected in the selection step, and in the selection step, when the reference block has two reference motion vectors, one of the two reference motion vectors is selected based on whether the reference block is located before or after the current block in display time order, and when the reference block has only one reference motion vector, the one reference motion vector is selected.

公开(公告)号：US20160080741A1

公开(公告)日：2016-03-17

申请号：US14951893

申请日：2015-11-25

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Hisao SASAI ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Toshiyasu SUGIO

IPC: H04N19/119 ,  H04N19/91 ,  H04N19/61 ,  H04N19/122 ,  H04N19/13

CPC classification number: H04N19/13 ,  H03M7/4018 ,  H04N19/119 ,  H04N19/122 ,  H04N19/124 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/61 ,  H04N19/91

Abstract: An image coding method comprising: obtaining current signals to be coded of each of the processing units of the image; generating a binary signal by performing binarization on each of the current signals to be coded; selecting a context for each of the current signals to be coded from among a plurality of contexts; performing arithmetic coding of the binary signal by using coded probability information associated with the context selected in the selecting; and updating the coded probability information based on the binary signal, wherein, in the selecting, the context for the current signal to be coded is selected, as a shared context, for a signal which is included in one of a plurality of processing units and has a size different from a size of the processing unit including the current signal to be coded.

Abstract translation: 一种图像编码方法，包括：获得要编码的图像的每个处理单元的当前信号; 通过对要编码的每个当前信号执行二值化来产生二进制信号; 从多个上下文中选择要编码的每个当前信号的上下文; 通过使用与在选择中选择的上下文相关联的编码概率信息来执行二进制信号的算术编码; 以及基于所述二进制信号来更新编码概率信息，其中，在所述选择中，选择要编码的当前信号的上下文作为共享上下文，用于包括在多个处理单元之一中的信号，以及 具有与包括要编码的当前信号的处理单元的尺寸不同的尺寸。

公开(公告)号：US20150245034A1

公开(公告)日：2015-08-27

申请号：US14708322

申请日：2015-05-11

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Kengo TERADA ,  Takahiro NISHI ,  Hisao SASAI ,  Satoshi YOSHIKAWA

IPC: H04N19/146 ,  H04N19/154 ,  H04N19/184 ,  H04N19/30 ,  H04N19/105

CPC classification number: H04N19/146 ,  H04N19/105 ,  H04N19/132 ,  H04N19/154 ,  H04N19/156 ,  H04N19/184 ,  H04N19/187 ,  H04N19/30 ,  H04N19/31

Abstract: A video encoding method of performing scalable encoding on input video includes: determining a total number of layers of the scalable encoding to be less than or equal to a maximum layer count determined according to a frame rate; and performing the scalable encoding on the input video to generate a bitstream, using the determined total number of layers.

Abstract translation: 对输入视频执行可分级编码的视频编码方法包括：将所述可分级编码的层数总数确定为小于或等于根据帧速率确定的最大层​​数; 以及在所述输入视频上执行所述可分级编码以使用确定的总层数生成比特流。

公开(公告)号：US20150229930A1

公开(公告)日：2015-08-13

申请号：US14695246

申请日：2015-04-24

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toshiyasu SUGIO ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Hisao SASAI

IPC: H04N19/139 ,  H04N19/52 ,  H04N19/573 ,  H04N19/105 ,  H04N19/172

CPC classification number: H04N19/107 ,  H04N19/105 ,  H04N19/124 ,  H04N19/137 ,  H04N19/139 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/52 ,  H04N19/56 ,  H04N19/567 ,  H04N19/573 ,  H04N19/577 ,  H04N19/58 ,  H04N19/61 ,  H04N19/70

Abstract: An image coding method includes: adding, to a candidate list, a first adjacent motion vector as a candidate for a predicted motion vector to be used for coding the current motion vector; selecting the predicted motion vector from the candidate list; and coding the current motion vector, wherein in the adding, the first adjacent motion vector indicating a position in a first reference picture included in a first reference picture list is added to the candidate list for the current motion vector indicating a position in a second reference picture included in a second reference picture list.

Abstract translation: 图像编码方法包括：向候选列表添加第一相邻运动矢量作为用于编码当前运动矢量的预测运动矢量的候选; 从候选列表中选择预测运动矢量; 并且对当前运动矢量进行编码，其中在相加中，指示包括在第一参考图像列表中的第一参考图像中的位置的第一相邻运动矢量被添加到用于指示第二参考中的位置的当前运动矢量的候选列表 图片包括在第二参考图片列表中。

公开(公告)号：US20150181220A1

公开(公告)日：2015-06-25

申请号：US14612728

申请日：2015-02-03

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Toshiyasu SUGIO ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Kyoko TANIKAWA ,  Hisao SASAI ,  Toru MATSUNOBU

IPC: H04N19/52 ,  H04N19/513

CPC classification number: H04N19/56 ,  H04N19/105 ,  H04N19/107 ,  H04N19/503 ,  H04N19/52 ,  H04N19/521

Abstract: A moving picture coding method for coding a current block derives a first candidate having a first motion vector predictor derived from a first motion vector that has been used to code a first block. It is determined whether a total number of one or more candidates having the first candidate is less than a maximum candidate number, and a second candidate having a second motion vector predictor is derived when the total number of the one or more candidates having the first candidate is less than the maximum candidate number. The second motion vector predictor is a zero vector. A candidate for coding the current block is selected out of the plurality of candidates having the first candidate and the second candidate.

Abstract translation: 用于编码当前块的运动图像编码方法导出具有从已经用于编码第一块的第一运动矢量导出的第一运动矢量预测器的第一候选。 确定具有第一候选的一个或多个候选的总数是否小于最大候选数，并且当具有第一候选的一个或多个候选的总数时，导出具有第二运动矢量预测器的第二候选 小于最大候选人数。 第二运动矢量预测器是零向量。 从具有第一候选和第二候选的多个候选中选出用于编码当前块的候选。

公开(公告)号：US20150110182A1

公开(公告)日：2015-04-23

申请号：US14578794

申请日：2014-12-22

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Hisao SASAI ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Chong Soon LIM ,  Viktor WAHADANIAH ,  XUAN JING ,  Sue Mon Thet NAING

IPC: H04N19/503 ,  H04N19/17

CPC classification number: H04N19/503 ,  G06T9/004 ,  H04N19/17 ,  H04N19/463 ,  H04N19/70 ,  H04N19/96

Abstract: An image decoding method decodes a coded stream which includes processing units and a header of the processing units, and which is generated by coding a moving picture using inter prediction. The processing units includes at least one processing unit divided in a hierarchy, the hierarchy including a highest hierarchical layer in which a coding unit exists as a largest processing unit and a lower hierarchical layer in which a prediction unit exists. The method includes identifying, by parsing hierarchy depth information stored in the header and indicating a hierarchical layer higher than a lowest hierarchical layer in which a smallest prediction unit exits, a hierarchical layer which is indicated by the hierarchy depth information or a hierarchical layer higher than the indicated hierarchical layer. The hierarchical layer includes a prediction unit in which a reference index is stored. The prediction unit is decoded using the reference index.

Abstract translation: 图像解码方法对包括处理单元和处理单元的标题的编码流进行解码，并且通过使用帧间预测对运动图像进行编码而生成。 处理单元包括分层划分的至少一个处理单元，该层次结构包括其中编码单元作为最大处理单元存在的最高分级层和存在预测单元的下层。 该方法包括通过解析存储在标题中的层次深度信息，并指示比最小预测单元退出的最低分层更高的分级层，由层级深度信息指示的分层或高于 指示层次。 分级层包括其中存储参考索引的预测单元。 使用参考索引对预测单元进行解码。

公开(公告)号：US20150063446A1

公开(公告)日：2015-03-05

申请号：US14533151

申请日：2014-11-05

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toshiyasu SUGIO ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Kyoko TANIKAWA ,  Hisao SASAI ,  Toru MATSUNOBU ,  Kengo TERADA

IPC: H04N19/18 ,  H04N19/129 ,  H04N19/105

CPC classification number: H04N19/18 ,  H04N19/105 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/463 ,  H04N19/61

Abstract: A moving picture encoding method for increasing coding efficiency includes: determining whether or not to apply orthogonal transformation, to calculate a value of an orthogonal transform skip flag; performing the orthogonal transformation on a prediction residual according to the value of the orthogonal transform skip flag, to calculate at least one orthogonal transform coefficient; performing quantization on at least the one orthogonal transform coefficient, to calculate at least one quantized coefficient; performing variable-length encoding on the orthogonal transform skip flag; and changing a scan order for at least the one quantized coefficient according to the value of the orthogonal transform skip flag, and performing variable-length encoding on at least the one quantized coefficient in the scan order after the change.

Abstract translation: 一种用于提高编码效率的运动图像编码方法包括：确定是否应用正交变换，以计算正交变换跳过标志的值; 根据正交变换跳过标志的值对预测残差执行正交变换，以计算至少一个正交变换系数; 至少对一个正交变换系数进行量化，计算至少一个量化系数; 对正交变换跳过标志执行可变长度编码; 以及根据所述正交变换跳过标志的值改变至少所述一个量化系数的扫描顺序，以及在所述改变之后对所述扫描顺序中的至少一个量化系数进行可变长度编码。

公开(公告)号：US20140355684A1

公开(公告)日：2014-12-04

申请号：US14283345

申请日：2014-05-21

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Matthias NARROSCHKE ,  Hisao SASAI

IPC: H04N19/51 ,  H04N19/583 ,  H04N19/80 ,  G06N5/04

CPC classification number: H04N19/176 ,  H04N19/117 ,  H04N19/139 ,  H04N19/14 ,  H04N19/159 ,  H04N19/82 ,  H04N19/86

Abstract: An image encoding method includes: selecting one motion prediction model from a plurality of motion prediction models including a translational motion model and a non-translational motion model for each of blocks in the image; performing motion prediction using the selected motion prediction model to generate a prediction image; generating a reconstructed image using the prediction image; determining that filtering is to be performed if the non-translational motion model is selected for at least one of a first block and a second block that is adjacent to the first block; and performing the filtering on a boundary between the reconstructed image for the first block and the reconstructed image for the second block if it is determined that the filtering is to be performed.

Abstract translation: 一种图像编码方法包括：从多个运动预测模型中选择一个运动预测模型，所述多个运动预测模型包括图像中每个块的平移运动模型和非平移运动模型; 使用所选择的运动预测模型执行运动预测以生成预测图像; 使用所述预测图像生成重建图像; 确定如果对于与第一块相邻的第一块和第二块中的至少一个选择非平移运动模型，则执行滤波; 以及如果确定要执行所述过滤，则对所述第一块的重构图像和所述第二块的重建图像之间的边界执行所述滤波。

公开(公告)号：US20140348230A1

公开(公告)日：2014-11-27

申请号：US14456152

申请日：2014-08-11

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Hisao SASAI ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Toshiyasu SUGIO ,  Kyoko TANIKAWA ,  Toru MATSUNOBU

IPC: H04N19/91 ,  H04N19/124 ,  H04N19/60

CPC classification number: H04N19/50 ,  H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/196 ,  H04N19/436 ,  H04N19/61 ,  H04N19/70 ,  H04N19/85 ,  H04N19/91

Abstract: A moving picture coding method includes (i) transforming, for each of one or more second processing units included in the first processing unit, a moving picture signal in a spatial domain into a frequency domain coefficient and quantizing the frequency domain coefficient, and (ii) performing arithmetic coding on a luminance CBF flag indicating whether or not a quantized coefficient is included in the second processing unit in which transform and quantization are performed, wherein, in the arithmetic coding, a probability table for use in arithmetic coding is determined according to whether or not the size of the first processing unit is identical to the size of the second processing unit and whether or not the second processing unit has a predetermined maximum size.