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：US20150256852A1

公开(公告)日：2015-09-10

申请号：US14719872

申请日：2015-05-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/60 ,  H04N19/176

CPC classification number: H04N19/44 ,  H04N19/119 ,  H04N19/122 ,  H04N19/136 ,  H04N19/147 ,  H04N19/176 ,  H04N19/184 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: A method and apparatus for decoding video and a method and apparatus for encoding video are provided. The method for decoding video includes: receiving and parsing a bitstream of encoded video; extracting, from the bitstream, encoded image data of a current picture assigned to a maximum coding unit of the current picture, information regarding a coded depth of the maximum coding unit, information regarding an encoding mode, and coding unit pattern information indicating whether texture information of the maximum coding units has been encoded; and decoding the encoded image data for the maximum coding unit, based on the information regarding the coded depth of the maximum coding unit, the information regarding the encoding mode, and the coding unit pattern information.

公开(公告)号：US20150237363A1

公开(公告)日：2015-08-20

申请号：US14704052

申请日：2015-05-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/44 ,  H04N19/46 ,  H04N19/60

CPC classification number: H04N19/61 ,  H04N19/119 ,  H04N19/129 ,  H04N19/147 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/70 ,  H04N19/96

Abstract: A method of decoding an encoded video including determining at least one coding unit by using split information extracted from a bitstream,obtaining first pattern information indicating whether residual samples of a coding unit among the at least one coding unit are equal to 0, when the first pattern information indicates the residual samples are not equal to 0, extracting from the bitstream transformation index information indicating whether a transformation unit of a current level included in the coding unit from among the at least one coding unit is split, when the transformation index information indicates a split of the transformation unit of the current level, splitting the transformation unit of the current level into square transformation units of a lower level, and when the transformation index information indicates a non-split of the transformation unit of the current level, obtaining second pattern information for the transformation unit of the current level, wherein the second pattern information indicates whether the transformation unit of the current level contains one or more transform coefficients not equal to 0, wherein a height of each of the square transformation units of the lower level is half a height of the transformation unit of the current level.

Abstract translation: 一种解码编码视频的方法，包括通过使用从比特流提取的分割信息来确定至少一个编码单元，获得指示所述至少一个编码单元中的编码单元的残留样本是否等于0的第一模式信息，当第一 模式信息表示残差​​样本不等于0，从比特流变换索引信息中提取表示在至少一个编码单元中包括在编码单元中的当前级别的变换单位是否被分裂时，当变换索引信息指示 当前电平的变换单元的分割，将当前电平的变换单位分解为较低电平的平方变换单位，并且当变换索引信息指示当前电平的变换单位的非分割时，获得第二 用于当前级别的变换单元的模式信息，其中， Cond图案信息指示当前级别的变换单元是否包含不等于0的一个或多个变换系数，其中，较低级别的每个正方形变换单元的高度是当前级别的变换单元的高度的一半。

公开(公告)号：US20150237362A1

公开(公告)日：2015-08-20

申请号：US14704036

申请日：2015-05-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/44 ,  H04N19/46 ,  H04N19/60

CPC classification number: H04N19/61 ,  H04N19/119 ,  H04N19/129 ,  H04N19/147 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/70 ,  H04N19/96

Abstract: A method of decoding an encoded video including determining at least one coding unit by using split information extracted from a bitstream, obtaining first pattern information indicating whether residual samples of a coding unit among the at least one coding unit are equal to 0, when the first pattern information indicates the residual samples are not equal to 0, extracting from the bitstream transformation index information indicating whether a transformation unit of a current level included in the coding unit from among the at least one coding unit is split, when the transformation index information indicates a split of the transformation unit of the current level, splitting the transformation unit of the current level into transformation units of a lower level, and when the transformation index information indicates a non-split of the transformation unit of the current level, obtaining second pattern information for the transformation unit of the current level, wherein the second pattern information indicates whether the transformation unit of the current level contains one or more transform coefficients not equal to 0, wherein the transformation unit of the current level is split into four transformation units of the lower level.

Abstract translation: 一种解码编码视频的方法，包括通过使用从比特流提取的分割信息来确定至少一个编码单元，获得指示所述至少一个编码单元中的编码单元的残留样本是否等于0的第一模式信息，当第一 模式信息表示残差​​样本不等于0，从比特流变换索引信息中提取表示在至少一个编码单元中包括在编码单元中的当前级别的变换单位是否被分裂时，当变换索引信息指示 当前级别的变换单元的分割，将当前级别的变换单位分解为较低级别的变换单位，并且当变换索引信息指示当前级别的变换单位的非分裂时，获得第二模式 用于当前级别的变换单元的信息，其中第二pa 总线信息指示当前级别的变换单元是否包含不等于0的一个或多个变换系数，其中当前级别的变换单位被分割为较低级别的四个变换单位。

公开(公告)号：US20150237361A1

公开(公告)日：2015-08-20

申请号：US14704019

申请日：2015-05-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/44 ,  H04N19/46 ,  H04N19/60

CPC classification number: H04N19/61 ,  H04N19/119 ,  H04N19/129 ,  H04N19/147 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/70 ,  H04N19/96

Abstract: A video decoding apparatus including an extractor which extracts from a bitstream first pattern information indicating whether residual samples of a current coding unit are equal to 0, and when the first pattern information indicates the residual samples are not equal to 0, extracts from the bitstream transformation index information indicating whether a transformation unit of a current level included in the current coding unit is split, a decoder which splits the transformation unit of the current level into transformation units of a lower level when the transformation index information indicates a split of the transformation unit of the current level, wherein the extractor further extracts second pattern information for the transformation unit of the current level when the transformation index information indicates a non-split of the transformation unit of the current level, wherein the second pattern information indicates whether the transformation unit of the current level contains one or more transform coefficients not equal to 0.

Abstract translation: 一种视频解码装置，包括提取器，其从比特流中提取表示当前编码单元的残差样本是否等于0的第一图案信息，当第一图案信息表示残留样本不等于0时，从比特流变换 索引信息，指示当前编码单元中包括的当前级别的变换单元是否被拆分;解码器，当变换索引信息指示变换单元的分割时，将当前级别的变换单位分解成较低级别的变换单位 其中当变换索引信息指示当前级别的变换单位的非分割时，提取器还提取当前级别的变换单元的第二模式信息，其中第二模式信息指示变换单元 的当前级别包含 一个或多个变换系数不等于0。

公开(公告)号：US20150208066A1

公开(公告)日：2015-07-23

申请号：US14672887

申请日：2015-03-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim SEREGIN ,  Il-koo KIM

IPC: H04N19/109 ,  H04N19/176 ,  H04N19/159 ,  H04N19/105 ,  H04N19/137

CPC classification number: H04N19/109 ,  H04N19/105 ,  H04N19/11 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/96

Abstract: A video decoding method involving intra prediction includes: parsing a most probable mode (MPM) flag of a block while parsing symbols of the block of an encoded video from a received bitstream; determining whether a predetermined number of a plurality of candidate intra prediction modes are used to predict an intra prediction mode of the block based on the MPM flag; when it is determined that the plurality of candidate intra prediction modes are used based on the MPM flag, determining the plurality of candidate intra prediction modes based on intra prediction modes of a left block and an upper block that are adjacent to the block while restoring the intra prediction mode of the block by using the parsed symbols.

公开(公告)号：US20150195583A1

公开(公告)日：2015-07-09

申请号：US14645951

申请日：2015-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Il-koo KIM

IPC: H04N19/91 ,  H04N19/60

CPC classification number: H04N19/91 ,  H04N19/119 ,  H04N19/13 ,  H04N19/139 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/18 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60

Abstract: Provided are entropy decoding and encoding methods of a video. The entropy decoding method includes obtaining a transformation unit significant coefficient flag indicating whether a non-zero transformation coefficient exists in the transformation unit, from a bitstream, determining a context model for arithmetically 5 decoding the transformation unit significant coefficient flag, based on the transformation depth of the transformation unit and arithmetically decoding the transformation unit significant coefficient flag based on the determined context model.

公开(公告)号：US20150181256A1

公开(公告)日：2015-06-25

申请号：US14636653

申请日：2015-03-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Il-koo KIM ,  Jeong-hoon PARK

IPC: H04N19/91 ,  H04N19/61 ,  H04N19/44 ,  H04N19/13

CPC classification number: H04N19/91 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/18 ,  H04N19/1887 ,  H04N19/44 ,  H04N19/61 ,  H04N19/82 ,  H04N19/96

Abstract: Methods and apparatuses for arithmetic encoding/decoding of video data. The arithmetic decoding method includes arithmetically decoding prefix bit strings representing a two-dimensional location of a last significant coefficient in a block sequentially by using a context model, arithmetically decoding suffix bit strings in a bypass mode, and performing inverse binarization on the arithmetically decoded prefix bit strings and suffix bit strings to acquire the location of the last significant coefficient in the block.

公开(公告)号：US20150181224A1

公开(公告)日：2015-06-25

申请号：US14635628

申请日：2015-03-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim SEREGIN ,  Il-koo KIM

IPC: H04N19/593 ,  H04N19/176

CPC classification number: H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/593 ,  H04N19/60 ,  H04N19/91

Abstract: A method of decoding a video through symbol decoding includes parsing symbols of image blocks from a received bitstream; classifying a current symbol into a prefix bit string and a suffix bit string based on a threshold value determined according to a size of a current block; performing arithmetic decoding of the prefix bit string and the suffix bit string by using respective arithmetic decoding methods determined for each of the prefix bit string and the suffix bit string; performing inverse binarization of the prefix bit string and the suffix bit string by using respective binarization methods determined for each of the prefix bit string and the suffix bit string; and restoring the image blocks by performing an inverse transformation operation and a prediction operation on the current block by using the current symbol restored through the arithmetic decoding and the inverse binarization.

公开(公告)号：US20150172697A1

公开(公告)日：2015-06-18

申请号：US14630167

申请日：2015-02-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Il-koo KIM

IPC: H04N19/513

CPC classification number: H04N19/52 ,  H04N19/103 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/513 ,  H04N19/573 ,  H04N19/577 ,  H04N19/583 ,  H04N19/96

Abstract: Provided is an inter prediction method including determining a collocated block of a current block of a current image from among blocks of an image that is restored prior to the current image; preferentially checking whether a first reference list from among reference lists of the collocated block is referred to and selectively checking whether a second reference list is referred to according to whether the first reference list is referred to; based on a result of the checking, determining a single collocated reference list from among the first reference list and the second reference list; determining a reference block of the current block by using motion information of the collocated reference list; and performing inter prediction on the current block by using the determined reference block.

Abstract translation: 提供一种帧间预测方法，包括从当前图像之前恢复的图像的块中确定当前图像的当前块的并置块; 优先检查来自并置块的参考列表中的第一参考列表是否被参考，并且根据是否参考第一参考列表来选择性地检查是否参考第二参考列表; 基于所述检查的结果，从所述第一参考列表和所述第二参考列表中确定单个并置参考列表; 通过使用并置参考列表的运动信息来确定当前块的参考块; 以及通过使用所确定的参考块对当前块执行帧间预测。