公开(公告)号：US20170332092A1

公开(公告)日：2017-11-16

申请号：US15522463

申请日：2015-08-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-young LEE ,  Yin-ji PIAO ,  Chan-yul KIM ,  Sun-il LEE

IPC: H04N19/50 ,  H04N19/176 ,  H04N19/132 ,  H04N19/157 ,  H04N19/70 ,  H04N19/46

CPC classification number: H04N19/50 ,  H04N19/132 ,  H04N19/157 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70 ,  H04N19/88

Abstract: Provided is a method of encoding an image, the method including: determining at least one compression unit included in the image; determining a scheme of changing a plurality of samples included in a current compression unit; changing the plurality of samples of the current compression unit based on the determined at least one compression unit and the determined scheme; splitting one of maximum coding units of the image including the changed plurality of samples into at least one coding unit; performing prediction by using at least one prediction unit determined from the at least one coding unit; and encoding the at least one coding unit by performing transformation by using at least one transformation unit determined from the at least one coding unit, wherein the encoding includes generating a bitstream including first information indicating the determined scheme.

公开(公告)号：US20170238012A1

公开(公告)日：2017-08-17

申请号：US15586935

申请日：2017-05-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye MIN ,  Sun-il LEE ,  Woo-jin HAN

IPC: H04N19/593 ,  H04N19/176 ,  H04N19/182 ,  H04N19/105

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/11 ,  H04N19/14 ,  H04N19/167 ,  H04N19/176 ,  H04N19/182 ,  H04N19/196 ,  H04N19/513 ,  H04N19/80 ,  H04N19/91

Abstract: An apparatus for decoding an image, the apparatus including an entropy decoder configured to extract an intra prediction mode of a current block, and an intra prediction performer configured to determine a number of neighboring pixels located on a left side of the current block or an upper side of the current block, determine a location of one or more neighboring pixels, the intra prediction mode indicating a particular direction among a plurality of directions, the particular direction being indicated by using one of a dx number in a horizontal direction and a fixed number in a vertical direction, and the location of the one or more neighboring pixels being determined based on a shift operation.

公开(公告)号：US20160286213A1

公开(公告)日：2016-09-29

申请号：US15180649

申请日：2016-06-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sun-il LEE ,  Elena ALSHINA ,  Yin-ji PIAO

IPC: H04N19/117 ,  H04N19/184 ,  H04N19/463 ,  H04N19/44 ,  H04N19/176 ,  H04N19/182

Abstract: Provided is a video decoding method for signaling of sample adaptive offset (SAO) parameters, the video decoding method including obtaining, from a bitstream, position information of each of a plurality of bandgroups with respect to a current block comprised in a video; obtaining, from the bitstream, offsets with respect to bands comprised in each of the plurality of bandgroups; determining the plurality of bandgroups so as to compensate for a pixel sample value of the current block, based on the position information of each of the plurality of bandgroups; and compensating for a sample value of a reconstructed pixel comprised in the current block, by using the obtained offsets. In this regard, each of the plurality of determined bandgroups comprises at least one band.

Abstract translation: 提供了一种用于信号采样自适应偏移（SAO）参数的视频解码方法，所述视频解码方法包括从比特流获得相对于包含在视频中的当前块的多个频带组中的每一个的位置信息; 从所述比特流获得关于包括在所述多个频带组中的每一个中的频带的偏移量; 基于所述多个频带组中的每一个的位置信息，确定所述多个频带组以便补偿所述当前块的像素采样值; 以及通过使用所获得的偏移来补偿包括在当前块中的重构像素的采样值。 在这点上，多个确定的频带组中的每一个包括至少一个频带。

公开(公告)号：US20160156924A1

公开(公告)日：2016-06-02

申请号：US15016790

申请日：2016-02-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sun-il LEE ,  Min-su CHEON ,  Woo-jin HAN

IPC: H04N19/51 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/103 ,  H04N19/61 ,  H04N19/96 ,  H04N19/137 ,  H04N19/157 ,  H04N19/543 ,  H04N19/139 ,  H04N19/122

Abstract: An apparatus for decoding a video by parsing asymmetric partition information indicating whether partition types include asymmetric partition types, from a bitstream of an encoded image, determining at least one coding unit included in a maximum coding unit by using split information parsed from the received bitstream, determining at least one prediction unit of a coding unit among the at least one coding unit, by using the asymmetric partition information and information about a partition type of the coding unit parsed from the received bitstream, and performing motion compensation using the prediction units for the coding unit.

公开(公告)号：US20160080738A1

公开(公告)日：2016-03-17

申请号：US14948705

申请日：2015-11-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Il-koo KIM ,  Jung-hye MIN ,  Hae-kyung JUNG ,  Sun-il LEE ,  Min-su CHEON

IPC: H04N19/103 ,  H04N19/597 ,  H04N19/132

CPC classification number: H04N19/103 ,  H04N19/105 ,  H04N19/119 ,  H04N19/122 ,  H04N19/132 ,  H04N19/172 ,  H04N19/176 ,  H04N19/198 ,  H04N19/46 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: A method of encoding a video includes: splitting a picture into a maximum coding unit; for the maximum coding unit, determining coding units having a tree structure including coding units of coded depths and determining encoding modes for the coding units of the coded depths by performing encoding based on coding units according to depths, the coding units according to depths obtained by hierarchically splitting the maximum coding unit as a depth deepens; and outputting information about a maximum coding unit size and, for the maximum coding unit, information indicating an order of split information and skip mode information which is selectively determined for the coding units according to depths, information about the encoding modes for the coding units of the coded depths including the split information and the skip mode information which are arranged according to the order, and encoded video data.

公开(公告)号：US20150189282A1

公开(公告)日：2015-07-02

申请号：US14643452

申请日：2015-03-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sun-il LEE ,  Hae-kyung JUNG ,  Min-su CHEON

IPC: H04N19/122 ,  H04N19/91 ,  H04N19/149 ,  H04N19/70 ,  H04N19/18

CPC classification number: H04N19/12 ,  H04N19/122 ,  H04N19/13 ,  H04N19/149 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/192 ,  H04N19/196 ,  H04N19/70 ,  H04N19/91

Abstract: Provided are a method and a device for encoding a video by using a data unit of a hierarchical structure, and a method and a device for decoding the same. A video encoding device includes: a hierarchical encoder configured to encode a picture of a video based on a data unit of a hierarchical structure; and an entropy coder configured to determine a context model used for entropy coding of a symbol based on hierarchical information of a data unit to which the symbol of the encoded picture belongs, and to entropy encode the symbol using the determined context model.

公开(公告)号：US20150003516A1

公开(公告)日：2015-01-01

申请号：US14486533

申请日：2014-09-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Il-koo KIM ,  Jung-hye MIN ,  Hae-kyung JUNG ,  Sun-il LEE ,  Min-su CHEON

IPC: H04N19/196 ,  H04N19/103

CPC classification number: H04N19/103 ,  H04N19/105 ,  H04N19/119 ,  H04N19/122 ,  H04N19/132 ,  H04N19/172 ,  H04N19/176 ,  H04N19/198 ,  H04N19/46 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: A method of encoding a video includes: splitting a picture into a maximum coding unit; for the maximum coding unit, determining coding units having a tree structure including coding units of coded depths and determining encoding modes for the coding units of the coded depths by performing encoding based on coding units according to depths, the coding units according to depths obtained by hierarchically splitting the maximum coding unit as a depth deepens; and outputting information about a maximum coding unit size and, for the maximum coding unit, information indicating an order of split information and skip mode information which is selectively determined for the coding units according to depths, information about the encoding modes for the coding units of the coded depths including the split information and the skip mode information which are arranged according to the order, and encoded video data.

Abstract translation: 视频编码方法包括：将图像分割为最大编码单位; 对于最大编码单元，通过基于根据深度的编码单位执行编码，确定具有包括编码深度的编码单位的树结构的编码单元和用于编码深度的编码单元的编码模式，编码单元根据由深度获得的深度， 分级分割最大编码单位，深度加深; 并且输出关于最大编码单元大小的信息，并且对于最大编码单元，指示根据深度选择性地针对编码单元确定的分割信息和跳过模式信息的顺序的信息，关于编码单元的编码模式的信息 包括根据顺序排列的分割信息和跳过模式信息的编码深度和编码视频数据。

公开(公告)号：US20140192890A1

公开(公告)日：2014-07-10

申请号：US14206024

申请日：2014-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sun-il LEE ,  Min-su CHEON ,  Woo-jin HAN

IPC: H04N19/51

CPC classification number: H04N19/51 ,  H04N19/103 ,  H04N19/119 ,  H04N19/122 ,  H04N19/137 ,  H04N19/139 ,  H04N19/157 ,  H04N19/176 ,  H04N19/30 ,  H04N19/33 ,  H04N19/46 ,  H04N19/50 ,  H04N19/503 ,  H04N19/533 ,  H04N19/543 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: A method of decoding a video includes determining coding units having a hierarchical structure being data units in which the encoded image is decoded, and sub-units for predicting the coding units, by using information that indicates division shapes of the coding units and information about prediction units of the coding units, parsed from a received bitstream of a encoded image, wherein the sub-units comprise partitions obtained by splitting at least one of a height and a width of the coding units according to at least one of a symmetric ratio and an asymmetric ratio, and reconstructing the image by performing decoding including motion compensation using the partitions for the coding units, using the encoding information parsed from the received bitstream, wherein the coding units having the hierarchical structure comprise coding units of coded depths split hierarchically according to the coded depths and independently from neighboring coding units.

Abstract translation: 解码视频的方法包括：通过使用指示编码单位的分割形状的信息和关于预测的信息，确定具有分层结构的编码单元，其中编码图像被解码的编码单元和用于预测编码单元的子单元 从编码图像的接收比特流解码的编码单元的单位，其中所述子单元包括通过根据对称比率和对称比率中的至少一个分割所述编码单元的高度和宽度中的至少一个而获得的分区 通过使用从接收的比特流解析的编码信息，通过使用编码单元的分区执行包括运动补偿的解码来重构图像，其中具有分层结构的编码单元包括根据编码单元分层分割的编码深度的编码单元 编码深度并且独立于相邻编码单元。

公开(公告)号：US20140192875A1

公开(公告)日：2014-07-10

申请号：US14206139

申请日：2014-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sun-il LEE ,  Min-su CHEON ,  Woo-jin HAN

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/137

CPC classification number: H04N19/51 ,  H04N19/103 ,  H04N19/119 ,  H04N19/122 ,  H04N19/137 ,  H04N19/139 ,  H04N19/157 ,  H04N19/176 ,  H04N19/30 ,  H04N19/33 ,  H04N19/46 ,  H04N19/50 ,  H04N19/503 ,  H04N19/533 ,  H04N19/543 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: An apparatus for decoding a video includes a receiver which receives and obtains a bitstream of an encoded image, a processor which determines coding units having a hierarchical structure being data units in which the encoded image is decoded, and sub-units for predicting the coding units, by using information that indicates division shapes of the coding units and information about prediction units of the coding units, obtained from the received bitstream, wherein the sub-units comprise partitions obtained by splitting at least one of a height and a width of the coding units according to at least one of a symmetric ratio and an asymmetric ratio, and a decoder which reconstructs the image by performing decoding including motion compensation using the partitions for the coding units, using the encoding information parsed from received bitstream, wherein the coding units having the hierarchical structure comprise coding units of coded depths split hierarchically according to the coded depths and independently from neighboring coding units.

Abstract translation: 一种用于解码视频的装置包括接收并获得编码图像的比特流的接收机，确定具有分层结构的编码单元的处理器，其中编码图像被解码的数据单元，以及用于预测编码单元的子单元 通过使用从所接收的比特流获得的指示编码单位的划分形状和与编码单元的预测单元有关的信息的信息，其中，所述子单元包括通过分割编码单元的高度和宽度中的至少一个而获得的分区 根据对称比率和非对称比率中的至少一个，单元，以及解码器，其使用从所接收的比特流解析的编码信息，通过使用所述编码单元的分区执行包括运动补偿的解码来重构图像，其中，所述编码单元具有 层次结构包括编码深度的编码单元，根据编码的层次分级分割 并且独立于相邻编码单元。