公开(公告)号：US20150215645A1

公开(公告)日：2015-07-30

申请号：US14678621

申请日：2015-04-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yin-ji PIAO ,  Jung-hye MIN

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

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.

Abstract translation: 提供一种用于确定变换系数的熵编码和解码的上下文模型的方法和装置。 根据该方法和装置，基于变换单元的颜色分量信息，当前子集的位置以及是否存在具有大于第一临界值的值的显着变换系数来获得上下文集索引ctxset 前一子集，并且基于具有连续1s的先前变换系数的长度获得上下文偏移量c1。 此外，基于获得的上下文集索引和上下文偏移来确定用于第一临界值标志的熵编码和解码的上下文索引ctxid。

公开(公告)号：US20150172711A1

公开(公告)日：2015-06-18

申请号：US14627669

申请日：2015-02-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

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

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: A method and apparatus for encoding and decoding an image through intra prediction using a pixel of the neighboring block along an extended line having a predetermined gradient about a pixel inside the current block.

公开(公告)号：US20150163507A1

公开(公告)日：2015-06-11

申请号：US14627765

申请日：2015-02-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/513 ,  H04N19/91

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: A method and apparatus for encoding and decoding an image through intra prediction using a pixel of the neighboring block along an extended line having a predetermined gradient about a pixel inside the current block.

公开(公告)号：US20150156504A1

公开(公告)日：2015-06-04

申请号：US14619299

申请日：2015-02-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-su CHEON ,  Jung-hye MIN ,  Woo-jin HAN

IPC: H04N19/44 ,  H04N19/176 ,  H04N19/46 ,  H04N19/109 ,  H04N19/61

CPC classification number: H04N19/44 ,  H04N19/109 ,  H04N19/119 ,  H04N19/13 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/63 ,  H04N19/635 ,  H04N19/70 ,  H04N19/96

Abstract: A method of decoding including obtaining transformation coefficients of a sub residual block based on location information of a non-zero transformation coefficient and level information of the non-zero transformation coefficient obtained from a bitstream.

Abstract translation: 一种解码方法，包括基于非零变换系数的位置信息和从比特流获得的非零变换系数的电平信息获得子残差块的变换系数。

公开(公告)号：US20150156502A1

公开(公告)日：2015-06-04

申请号：US14619160

申请日：2015-02-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-su CHEON ,  Jung-hye MIN ,  Woo-jin HAN

IPC: H04N19/44 ,  H04N19/635 ,  H04N19/60

CPC classification number: H04N19/44 ,  H04N19/109 ,  H04N19/119 ,  H04N19/13 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N19/63 ,  H04N19/635 ,  H04N19/70 ,  H04N19/96

Abstract: A decoding apparatus for decoding an image by obtaining transformation coefficients of a sub residual block based on location information of a non-zero transformation coefficient and level information of the non-zero transformation coefficient obtained from a bitstream.

Abstract translation: 一种解码装置，用于通过基于非零变换系数的位置信息和从比特流获得的非零变换系数的电平信息获得子残差块的变换系数来对图像进行解码。

公开(公告)号：US20150156500A1

公开(公告)日：2015-06-04

申请号：US14616383

申请日：2015-02-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/167 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/196

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: A method and apparatus for encoding and decoding an image through intra prediction using a pixel of the neighboring block along an extended line having a predetermined gradient about a pixel inside the current block.

Abstract translation: 一种用于通过使用相邻块的像素沿着具有关于当前块内的像素的预定梯度的延伸线的帧内预测对图像进行编码和解码的方法和装置。

公开(公告)号：US20150146791A1

公开(公告)日：2015-05-28

申请号：US14611630

申请日：2015-02-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye MIN ,  Woo-jin HAN ,  Tammy LEE ,  Il-koo KIM ,  Min-su CHEON

IPC: H04N19/635

CPC classification number: H04N19/60 ,  H04N19/122 ,  H04N19/172 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/635 ,  H04N19/96

Abstract: Encoding and decoding a video using transformation index that indicates information that indicates a structure of a transformation unit transforming data of a current coding unit.

Abstract translation: 使用指示表示当前编码单元的变换数据的变换单位的结构的信息的变换索引对视频进行编码和解码。

公开(公告)号：US20150139561A1

公开(公告)日：2015-05-21

申请号：US14606685

申请日：2015-01-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/105 ,  H04N19/17

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：US20150139315A1

公开(公告)日：2015-05-21

申请号：US14603194

申请日：2015-01-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/50 ,  H04N19/44

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/122 ,  H04N19/139 ,  H04N19/146 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/197 ,  H04N19/44 ,  H04N19/46 ,  H04N19/50 ,  H04N19/587 ,  H04N19/61 ,  H04N19/96

Abstract: A video decoding method and apparatus and a video encoding method and apparatus based on a scanning order of hierarchical data units are provided. The decoding method includes: receiving and parsing a bitstream of an encoded video; extracting from the bitstream information about a size of a maximum coding unit for decoding a picture of the encoded video, and encoding information about a coded depth and an encoding mode for coding units of the picture, wherein the size of the maximum coding unit is a maximum size of a coding unit which is a data unit for decoding the picture; and determining a hierarchical structure of the maximum coding unit and the coding units into which the picture is divided according to depths, and decoding the picture based on the coding units, by using the information about the size of the maximum coding unit and the encoding information about the coded depth and the encoded mode.

公开(公告)号：US20150139313A1

公开(公告)日：2015-05-21

申请号：US14600899

申请日：2015-01-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/86 ,  H04N19/80 ,  H04N19/61

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.