公开(公告)号：US20210021827A1

公开(公告)日：2021-01-21

申请号：US17060966

申请日：2020-10-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yin-ji PIAO ,  Jie CHEN ,  Chan-yul KIM

IPC: H04N19/119 ,  H04N19/96 ,  H04N19/129 ,  H04N19/136 ,  H04N19/176

Abstract: Provided is a video decoding method including obtaining split information indicating whether to split a current block; when the split information indicates that the current block is split, splitting the current block into at least two lower blocks; obtaining encoding order information indicating an encoding order of the at least two lower blocks of the current block; determining a decoding order of the at least two lower blocks according to the encoding order information; and decoding the at least two lower blocks according to the decoding order.

公开(公告)号：US20200260104A1

公开(公告)日：2020-08-13

申请号：US16651865

申请日：2018-03-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yin-ji PIAO ,  Jie CHEN ,  Elena ALSHINA

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/159 ,  H04N19/117

Abstract: A video decoding method includes obtaining split information indicating whether to split a current block, splitting the current block into two or more lower blocks when the split information indicates to split the current block, obtaining encoding order information indicating an encoding order of the lower blocks of the current block, determining a decoding order of the lower blocks according to the encoding order information, and decoding the lower blocks according to the decoding order.

公开(公告)号：US20200169738A1

公开(公告)日：2020-05-28

申请号：US16618892

申请日：2018-07-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yin-ji PIAO

IPC: H04N19/176 ,  H04N19/184 ,  H04N19/50

Abstract: Provided is a video decoding method including obtaining split information indicating whether a current block is to be split from a bitstream; splitting the current block into two or more sub-blocks when the split information indicates that the current block is to be split; determining lower horizontal coding order information of the sub-blocks of the current block according to higher horizontal coding order information applied to the current block, based on at least one of split information, size information, and neighboring block information of the current block; and decoding the sub-blocks according to the lower horizontal coding order information.

公开(公告)号：US20190281285A1

公开(公告)日：2019-09-12

申请号：US16345950

申请日：2017-10-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yin-ji PIAO ,  Jie CHEN ,  Chan-yul KIM

IPC: H04N19/105 ,  H04N19/46 ,  H04N19/119 ,  H04N19/88 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186

Abstract: Provided is a video decoding method including obtaining, from a bitstream, split information indicating whether a current block is to be split; when the split information does not indicate that the current block is to be split, decoding the current block according to encoding information about the current block; and when the split information indicates that the current block is to be split, splitting the current block into at least two lower blocks, obtaining encoding order information indicating an encoding order of the at least two lower blocks of the current block from the bitstream, determining a decoding order of the at least two lower blocks according to the encoding order information, and decoding the at least two lower blocks according to the decoding order.

公开(公告)号：US20180352231A1

公开(公告)日：2018-12-06

申请号：US15775700

申请日：2016-11-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-young LEE ,  Ki-ho CHOI ,  Chan-yul KIM ,  Kwang-hyun WON ,  Yin-ji PIAO ,  Sun-il LEE

IPC: H04N19/129

CPC classification number: H04N19/129 ,  H04N19/14 ,  H04N19/157 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70

Abstract: Provided are a video decoding method and a video decoding apparatus capable of performing the video decoding method including receiving a bitstream of an encoded video; obtaining, from the bitstream, shape information of one or more scanning units each consisting of a predetermined number of adjacent largest coding units from among a plurality of largest coding units split from a picture; determining a shape of the one or more scanning units, based on the obtained shape information; obtaining, from the bitstream, processing order information of the one or more scanning units of a current picture, and processing order information of largest coding units included in the one or more scanning units; determining a processing order of the one or more scanning units included in the current picture, based on the processing order information of the one or more scanning units; determining a processing order of largest coding units included in each of the one or more scanning units, based on the processing order information of largest coding units included in the one or more scanning units; and decoding a plurality of largest coding units included in the current picture according to the determined processing order of the one or more scanning units and the determined processing order of largest coding units included in each of the one or more scanning units.

公开(公告)号：US20180139443A1

公开(公告)日：2018-05-17

申请号：US15572608

申请日：2016-05-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo PARK ,  In-kwon CHOI ,  Jin-young LEE ,  Chan-yul KIM ,  Yin-ji PIAO

IPC: H04N19/11 ,  H04N19/176 ,  H04N19/184 ,  H04N19/132 ,  H04N19/122

Abstract: Provided is a video decoding method including: obtaining mode information of a contour for determining at least one segment from a current block; determining whether first coordinates and second coordinates of the contour are derivable from a neighboring block of the current block, based on the mode information of the contour; when the first and second coordinates of the contour are derivable from the neighboring block of the current block, determining the at least one segment from the current block based on the first and second coordinates of the contour derived from the neighboring block of the current block; and performing prediction with respect to the determined at least one segment.

公开(公告)号：US20160295237A1

公开(公告)日：2016-10-06

申请号：US15185153

申请日：2016-06-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yin-ji PIAO ,  Sun-il LEE

IPC: H04N19/593 ,  H04N19/176

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/176 ,  H04N19/463

Abstract: Provided is a video decoding method including determining a reference intra prediction mode, based on availability and a prediction mode of an adjacent block of a current block; determining a plurality of candidate intra prediction modes for the current block, based on the reference intra prediction mode; obtaining, from a bitstream, intra prediction data comprising information regarding an intra prediction mode of the current block; when the intra prediction data indicates that the current block is predicted according to one of the plurality of candidate intra prediction modes, selecting an intra prediction mode to be used in intra predicting the current block, wherein the intra prediction mode is from among the plurality of candidate intra prediction modes; and performing intra prediction on the current block, according to the selected intra prediction mode.

Abstract translation: 提供了一种视频解码方法，包括基于当前块的相邻块的可用性和预测模式来确定参考帧内预测模式; 基于参考帧内预测模式确定当前块的多个候选帧内预测模式; 从比特流获取包括关于当前块的帧内预测模式的信息的帧内预测数据; 当帧内预测数据表示根据多个候选帧内预测模式中的一个预测当前块时，选择在帧内预测模式中使用的帧内预测模式，其中帧内预测模式来自多个 候选帧内预测模式; 以及根据所选择的帧内预测模式对当前块执行帧内预测。

公开(公告)号：US20150215646A1

公开(公告)日：2015-07-30

申请号：US14678637

申请日：2015-04-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yin-ji PIAO ,  Jung-hye MIN

IPC: H04N19/60 ,  H04N19/91 ,  H04N19/18 ,  H04N19/186 ,  H04N19/176

CPC classification number: H04N19/60 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/91

Abstract: Provided are a method and apparatus for determining a context model for entropy encoding and decoding of a transformation coefficient. According to the method and apparatus, a context set index ctxset is obtained based on color component information of a transformation unit, a location of a current subset, and whether there is a significant transformation coefficient having a value greater than a first critical value in a previous subset, and a context offset c1 is obtained based on a length of a previous transformation coefficient having consecutive 1s. Also, a context index ctxids for entropy encoding and decoding of a first critical value flag is determined based on the obtained context set index and the context offset.