公开(公告)号：US20180288410A1

公开(公告)日：2018-10-04

申请号：US15525193

申请日：2015-11-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chan-yul PARK ,  Jung-hye MIN

IPC: H04N19/107 ,  H04N19/176 ,  H04N19/182 ,  H04N19/523 ,  H04N19/593

CPC classification number: H04N19/107 ,  H04N19/10 ,  H04N19/105 ,  H04N19/139 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/46 ,  H04N19/463 ,  H04N19/523 ,  H04N19/593

Abstract: Provided are a method and apparatus for performing combination prediction by obtaining a weight for intra prediction and inter prediction by taking into account at least one of a distance between a reference picture and a current picture, a size of a current block, and characteristics of the inter prediction and intra prediction. An image decoding method according to the present disclosure includes parsing, from a bitstream, combination prediction information indicating whether to predict a current block by combining intra prediction and inter prediction; determining whether to perform combination prediction on the current block, based on the combination prediction information; obtaining, when the combination prediction is performed, a first prediction value by performing the inter prediction on the current block, and obtaining a second prediction value by performing the intra prediction on the current block; determining a weight for the inter prediction and a weight for the intra prediction, based on at least one of a distance between a reference picture and a current picture, a size of the current block, and characteristics of the inter prediction and the intra prediction; and performing the combination prediction, based on the weight for the inter prediction, the weight for the intra prediction, the first prediction value, and the second prediction value.

公开(公告)号：US20180278960A1

公开(公告)日：2018-09-27

申请号：US15991831

申请日：2018-05-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

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

CPC classification number: H04N19/44 ,  H04N19/119 ,  H04N19/129 ,  H04N19/147 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96 ,  H05K999/99

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, wherein the transformation unit of the current level is split into four transformation units of the lower level.

公开(公告)号：US20180249187A1

公开(公告)日：2018-08-30

申请号：US15969104

申请日：2018-05-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye MIN ,  Tammy LEE ,  Il-koo KIM

IPC: H04N19/86 ,  H04N19/139 ,  H04N19/593 ,  H04N19/122 ,  H04N19/30 ,  H04N19/52 ,  H04N19/82 ,  H04N19/157 ,  H04N19/117 ,  H04N19/96 ,  H04N19/61 ,  H04N19/119 ,  H04N19/50 ,  H04N19/80 ,  H04N19/182 ,  H04N19/159 ,  H04N19/105

CPC classification number: H04N19/86 ,  H04N19/105 ,  H04N19/117 ,  H04N19/119 ,  H04N19/122 ,  H04N19/139 ,  H04N19/157 ,  H04N19/159 ,  H04N19/182 ,  H04N19/395 ,  H04N19/50 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61 ,  H04N19/80 ,  H04N19/82 ,  H04N19/96

Abstract: A method and apparatus for encoding video by using deblocking filtering, and a method and apparatus for decoding video by using deblocking filtering are provided. The method of encoding video includes: splitting a picture into a maximum coding unit; determining coding units of coded depths and encoding modes for the coding units of the maximum coding unit by prediction encoding the coding units of the maximum coding unit based on at least one prediction unit and transforming the coding units based on at least one transformation unit, wherein the maximum coding unit is hierarchically split into the coding units as a depth deepens, and the coded depths are depths where the maximum coding unit is encoded in the coding units; and performing deblocking filtering on video data being inversely transformed into a spatial domain in the coding units, in consideration of the encoding modes.

公开(公告)号：US20180184105A1

公开(公告)日：2018-06-28

申请号：US15903982

申请日：2018-02-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye MIN ,  Woo-jin HAN ,  Il-koo KIM

IPC: H04N19/50 ,  H04N19/96 ,  H04N19/117 ,  H04N19/82 ,  H04N19/80 ,  H04N19/61 ,  H04N19/593 ,  H04N19/52 ,  H04N19/513 ,  H04N19/44 ,  H04N19/196 ,  H04N19/86 ,  H04N19/176 ,  H04N19/172 ,  H04N19/159 ,  H04N19/147 ,  H04N19/139 ,  H04N19/119 ,  H04N19/184

CPC classification number: H04N19/59 ,  H04N19/117 ,  H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/197 ,  H04N19/30 ,  H04N19/44 ,  H04N19/50 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61 ,  H04N19/80 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

Abstract: Provided are a method and apparatus for encoding a video and a method and apparatus for decoding a video. The encoding method includes: splitting a picture of the video into one or more maximum coding units; encoding the picture based on coding units according to depths which are obtained based on a partition type determined according to the depths of the coding units according to depths, determining coding units according to coded depths with respect to each of the coding units according to depths, and thus determining coding units having a tree structure; and outputting data that is encoded based on the partition type and the coding units having the tree structure, information about the coded depths and an encoding mode, and coding unit structure information indicating a size and a variable depth of a coding unit.

公开(公告)号：US20170374370A1

公开(公告)日：2017-12-28

申请号：US15701022

申请日：2017-09-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye MIN ,  Elena ALSHINA ,  Woo-jin HAN

IPC: H04N19/159 ,  H04N19/593 ,  H04N19/50 ,  H04N19/44 ,  H04N19/30 ,  H04N19/11 ,  H04N19/105 ,  H04N19/96 ,  H04N19/176 ,  H04N19/13 ,  H04N19/122 ,  H04N19/186 ,  H04N19/107 ,  H04N19/182 ,  H04N19/184

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/107 ,  H04N19/11 ,  H04N19/122 ,  H04N19/13 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/44 ,  H04N19/50 ,  H04N19/593 ,  H04N19/96

Abstract: A method for decoding an image including performing intra prediction on a chrominance block according to whether the intra prediction mode of the chrominance block is equal to an intra prediction mode of a luminance block.

公开(公告)号：US20170339403A1

公开(公告)日：2017-11-23

申请号：US15524315

申请日：2015-09-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye MIN ,  Elena ALSHINA ,  Yin-ji PIAO

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

CPC classification number: H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/176 ,  H04N19/196 ,  H04N19/593 ,  H04N19/597

Abstract: A video decoding method includes determining an intra prediction mode of a current lower block corresponding to one of a plurality of lower blocks generated by splitting an upper block, determining reference samples of the current lower block based on samples adjacent to the upper block, determining a predicted value of a current sample included in the current lower block, by using the reference samples based on the intra prediction mode, and reconstructing the current lower block based on the predicted value, wherein the current sample included in the current lower block is excluded from reference samples of another lower block included in the upper block.

公开(公告)号：US20170223364A1

公开(公告)日：2017-08-03

申请号：US15486458

申请日：2017-04-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye MIN ,  Elena ALSHINA ,  Woo-jin HAN

IPC: H04N19/159 ,  H04N19/30

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/107 ,  H04N19/11 ,  H04N19/122 ,  H04N19/13 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/44 ,  H04N19/50 ,  H04N19/593 ,  H04N19/96

Abstract: A method for decoding an image including performing intra prediction on a chrominance block according to whether the intra prediction mode of the chrominance block is equal to an intra prediction mode of a luminance block.

公开(公告)号：US20150326854A1

公开(公告)日：2015-11-12

申请号：US14802849

申请日：2015-07-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/105 ,  H04N19/46 ,  H04N19/176

CPC classification number: H04N19/105 ,  G06T9/00 ,  H04N19/103 ,  H04N19/115 ,  H04N19/119 ,  H04N19/132 ,  H04N19/17 ,  H04N19/176 ,  H04N19/46 ,  H04N19/50 ,  H04N19/96

Abstract: An apparatus for decoding an image includes an encoding information extractor which extracts split information indicating whether to split a coding unit of an upper depth into coding units of deeper depths and skip information indicating whether a prediction mode of a current coding unit is a skip mode, from image data and a decoding unit which determines a split structure of a maximum coding unit, according to the split information so that the maximum coding unit is hierarchically split as a depth increases and determines whether the prediction mode of the current coding unit is the skip mode according to the skip information.

公开(公告)号：US20150256830A1

公开(公告)日：2015-09-10

申请号：US14719689

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: H04N19/122 ,  H04N19/184 ,  H04N19/136

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.

Abstract translation: 提供了一种用于解码视频的方法和装置以及用于编码视频的方法和装置。 用于解码视频的方法包括：接收和解析编码视频的比特流; 从比特流提取分配给当前图片的最大编码单位的当前图片的编码图像数据，关于最大编码单元的编码深度的信息，关于编码模式的信息，以及指示纹理信息的编码单元模式信息 的最大编码单位已被编码; 并且基于关于最大编码单元的编码深度的信息，关于编码模式的信息和编码单元模式信息来解码用于最大编码单元的编码图像数据。

公开(公告)号：US20150249834A1

公开(公告)日：2015-09-03

申请号：US14714880

申请日：2015-05-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye MIN ,  Woo-jin HAN ,  Il-koo KIM

IPC: H04N19/159 ,  H04N19/176 ,  H04N19/50 ,  H04N19/117 ,  H04N19/44 ,  H04N19/115 ,  H04N19/105

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/115 ,  H04N19/117 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/50 ,  H04N19/593 ,  H04N19/82 ,  H04N19/96

Abstract: A method of decoding an image including extracting information that indicates an intra prediction mode applied to a current block to be decoded, from a bitstream; determining one of neighboring pixels adjacent to the current block and filtered neighboring pixels filtered from the neighboring pixels as reference pixels, based on at least one of a size of the current block and an intra prediction mode of the current block; performing intra prediction on the current block using the extracted information and the determined reference pixels, wherein, when the current block has a size of N×N, where N is integer, the neighboring pixels include 2N neighboring pixels adjacent to an upper side and an upper right side of the current block and 2N neighboring pixels adjacent to a left side and a below left side of the current block.