公开(公告)号：US20190238855A1

公开(公告)日：2019-08-01

申请号：US16382919

申请日：2019-04-12

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toshihiko KUSAKABE ,  Shinji KITAMURA ,  Kiyofumi ABE ,  Hideyuki OHGOSE ,  Takashi HASHIMOTO

IPC: H04N19/146 ,  H04N19/176 ,  H04N19/174

CPC classification number: H04N19/146 ,  H04N19/174 ,  H04N19/176 ,  H04N19/463

Abstract: Provided is an image encoding method which inhibits deterioration in processing performance for encoding while improving transmission efficiency. The image encoding method is for generating a bitstream by encoding a picture, and includes: sequentially encoding blocks included in the picture; deriving an encoding amount of a slice segment each time one of the blocks is encoded as a current block, the slice segment including the current block; determining whether the encoding amount derived is at least a threshold; and setting end information indicating an end of the slice segment in a position in the bitstream when the encoding amount is determined to be at least the threshold, the position corresponding to the current block encoded.

公开(公告)号：US20170302919A1

公开(公告)日：2017-10-19

申请号：US15631755

申请日：2017-06-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuma SAKAKIBARA ,  Kiyofumi ABE ,  Naoki YOSHIMATSU ,  Hideyuki OHGOSE ,  Koji ARIMURA ,  Hiroshi ARAKAWA ,  Kazuhito KIMURA

IPC: H04N19/103 ,  H04N19/124 ,  H04N19/593 ,  H04N19/61

CPC classification number: H04N19/103 ,  H04N19/124 ,  H04N19/593 ,  H04N19/61

Abstract: An image encoding method includes: selecting, for each processing block, one of intra prediction modes specified by a coding standard, and performing intra prediction according to the intra prediction mode, wherein the intra prediction modes include a lower-left reference mode in which a processing block located at lower left of a current processing block is referred to, the processing blocks include a first processing block and a second processing block located at upper right of the first processing block, the second processing block being equal in size to the first processing block, the coding standard defines that information on the second processing block is written into a bitstream after information on the first processing block, and in the intra prediction, (i) selection of the lower-left reference mode is prohibited and intra prediction is performed on the second processing block, and, (ii) intra prediction is performed on the first processing block.

公开(公告)号：US20150271516A1

公开(公告)日：2015-09-24

申请号：US14660419

申请日：2015-03-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koji ARIMURA ,  Kazuhito KIMURA ,  Hideyuki OHGOSE ,  Hiroshi ARAKAWA ,  Kiyofumi ABE ,  Kazuma SAKAKIBARA

IPC: H04N19/513 ,  H04N19/172 ,  H04N19/176 ,  H04N19/56

CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/119 ,  H04N19/149 ,  H04N19/172 ,  H04N19/176 ,  H04N19/56

Abstract: In an exemplary embodiment, in order to avoid enlargement of a circuit scale to perform coding processing in real time, a block size of a PU (evaluation PU (Prediction Unit)) used to evaluate a merge mode is restricted and the number of evaluation target merge candidates is restricted. In the case where the evaluation PU has the block size in which a CU (Cording Unit) is divided, at least one merge candidate common to a merge candidate list of a PU (inclusion PU) having the block size including the evaluation PU and a merge candidate list of each of a plurality of evaluation PUs is selected as the evaluation target merge candidate from the merge candidate lists of the evaluation PUs. In performing cost evaluation processing for the evaluation PU, cost evaluation processing is simultaneously performed on the inclusion PU using a calculated prediction residual.

Abstract translation: 在一个示例性实施例中，为了避免放大电路规模以实时执行编码处理，用于评估合并模式的PU（评估PU（预测单元））的块大小被限制，并且评估目标的数量 合并候选人受到限制。 在评价PU具有划分CU（Cording Unit）的块大小的情况下，具有包含评估PU的块大小的PU（包含PU）的合并候选列表的公共的至少一个合并候选和 从评估PU的合并候选列表中选择多个评估PU中的每一个的合并候选列表作为评估对象合并候选。 在进行评价用PU的成本评价处理中，使用计算出的预测残差，对包含PU同时进行成本评价处理。

公开(公告)号：US20150271485A1

公开(公告)日：2015-09-24

申请号：US14619993

申请日：2015-02-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kazuma SAKAKIBARA ,  Kiyofumi ABE ,  Naoki YOSHIMATSU ,  Hideyuki OHGOSE ,  Koji ARIMURA ,  Hiroshi ARAKAWA ,  Kazuhito KIMURA

IPC: H04N19/103 ,  H04N19/124 ,  H04N19/61

CPC classification number: H04N19/103 ,  H04N19/124 ,  H04N19/593 ,  H04N19/61

Abstract: An image encoding method includes: selecting, for each processing block, one of intra prediction modes specified by a coding standard, and performing intra prediction according to the intra prediction mode, wherein the intra prediction modes include a lower-left reference mode in which a processing block located at lower left of a current processing block is referred to, the processing blocks include a first processing block and a second processing block located at upper right of the first processing block, the second processing block being equal in size to the first processing block, the coding standard defines that information on the second processing block is written into a bitstream after information on the first processing block, and in the intra prediction, (i) selection of the lower-left reference mode is prohibited and intra prediction is performed on the second processing block, and, (ii) intra prediction is performed on the first processing block.

Abstract translation: 图像编码方法包括：对于每个处理块，选择由编码标准指定的帧内预测模式之一，并根据帧内预测模式进行帧内预测，​​其中帧内预测模式包括左下参考模式，其中 参考当前处理块的左下方的处理块，处理块包括位于第一处理块的右上方​​的第一处理块和第二处理块，第二处理块的大小与第一处理相同 编码标准定义了关于第一处理块的信息之后的第二处理块上的信息被写入到比特流中，并且在帧内预测中，（i）禁止左下参考模式的选择并执行帧内预测 在第二处理块上，并且（ii）对第一处理块执行帧内预测。