公开(公告)号：US09319686B2

公开(公告)日：2016-04-19

申请号：US14056551

申请日：2013-10-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hak-sup Song ,  Jung-hye Min

IPC: H04N7/12 ,  H04N19/105 ,  H04N19/176 ,  H04N19/134 ,  H04N19/96 ,  H04N19/593 ,  H04N19/11 ,  H04N19/14 ,  H04N19/80

CPC classification number: H04N19/105 ,  H04N19/11 ,  H04N19/134 ,  H04N19/14 ,  H04N19/176 ,  H04N19/593 ,  H04N19/80 ,  H04N19/96

Abstract: A method of decoding an image including: obtaining information about an intra prediction mode applied to a current block to be decoded, from a bitstream; obtaining one of a left neighboring pixel whose location is determined based on j*dy>>n and a up neighboring pixel whose location is determined based on i*dx>>m, where a current pixel is located on (i,j), dx, dy, m and n are integers; performing intra prediction on the current pixel using one of the left neighboring pixel and the up neighboring pixel.

Abstract translation: 一种解码图像的方法，包括：从比特流获得关于应用于要解码的当前块的帧内预测模式的信息; 获得基于j * dy >> n确定位置的左邻近像素中的一个以及基于i * dx >> m确定位置的向上相邻像素，其中当前像素位于（i，j）上， dx，dy，m和n是整数; 使用左邻近像素和向上相邻像素中的一个来对当前像素执行帧内预测。

公开(公告)号：US09307263B2

公开(公告)日：2016-04-05

申请号：US14678588

申请日：2015-04-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yin-ji Piao ,  Jung-hye Min

IPC: H04N7/18 ,  H04N19/60 ,  H04N19/91 ,  H04N19/176 ,  H04N19/186 ,  H04N19/18

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.

公开(公告)号：US09225997B2

公开(公告)日：2015-12-29

申请号：US14305211

申请日：2014-06-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye Min ,  Hae-kyung Jung ,  Il-koo Kim ,  Min-su Cheon

IPC: H04N19/46 ,  H04N19/593 ,  H04N19/139 ,  H04N19/146 ,  H04N19/196 ,  H04N19/61 ,  H04N19/122 ,  H04N19/96 ,  H04N19/44 ,  H04N19/50 ,  H04N19/587

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.

Abstract translation: 提供了基于层次数据单元的扫描顺序的视频解码方法和装置以及视频编码方法和装置。 解码方法包括：接收和解析编码视频的比特流; 从比特流中提取关于用于对编码视频的图像进行解码的最大编码单元的大小的信息，以及编码关于编码深度的信息和用于编码图像的编码单元的编码模式，其中最大编码单元的大小为 作为用于解码图像的数据单元的编码单元的最大尺寸; 以及根据深度来确定最大编码单位和图像划分成的编码单元的层次结构，并且通过使用关于最大编码单元和编码信息的大小的信息，基于编码单元对图像进行解码 关于编码深度和编码模式。

公开(公告)号：US09225987B2

公开(公告)日：2015-12-29

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 ,  H04N19/105 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/172 ,  H04N19/46 ,  H04N19/122 ,  H04N19/61 ,  H04N19/96 ,  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.

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：US09106924B2

公开(公告)日：2015-08-11

申请号：US14524355

申请日：2014-10-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee ,  Woo-jin Han ,  Jung-hye Min

IPC: H04N7/12 ,  H04N19/513 ,  H04N19/33 ,  H04N19/105 ,  H04N19/52 ,  H04N19/139 ,  H04N19/176 ,  H04N19/70 ,  H04N19/147 ,  H04N19/51 ,  H04N19/96 ,  H04N19/103 ,  H04N19/44

CPC classification number: H04N19/33 ,  H04N19/103 ,  H04N19/105 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: Provided are methods and apparatuses for encoding and decoding a motion vector. The method of encoding a motion vector includes: selecting a mode from among a first mode in which information indicating a motion vector predictor of at least one motion vector predictor is encoded and a second mode in which information indicating generation of a motion vector predictor based on pixels included in a previously encoded area adjacent to a current block is encoded; determining a motion vector predictor of the current block according to the selected mode and encoding information about the motion vector predictor of the current block; and encoding a difference vector between a motion vector of the current block and the motion vector predictor of the current block.

公开(公告)号：US09071839B2

公开(公告)日：2015-06-30

申请号：US14536082

申请日：2014-11-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye Min ,  Woo-jin Han ,  Il-koo Kim

IPC: H04N11/02 ,  H04B1/66 ,  H04N19/159 ,  H04N19/593 ,  H04N19/105 ,  H04N19/176 ,  H04N19/96 ,  H04N19/11 ,  H04N19/117 ,  H04N19/182 ,  H04N19/44 ,  H04N19/82 ,  H04N19/115 ,  H04N19/50

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.

Abstract translation: 一种从比特流解码包括提取指示应用于要解码的当前块的帧内预测模式的信息的图像的方法; 基于当前块的当前块的大小和帧内预测模式中的至少一个，确定与当前块相邻的相邻像素中的一个和从相邻像素滤波的经滤波的相邻像素作为参考像素; 使用所提取的信息和所确定的参考像素对当前块执行帧内预测，​​其中当当前块具有N×N的大小时，其中N是整数，相邻像素包括与上侧相邻的2N个相邻像素， 当前块的右上侧和与当前块的左侧和左下侧相邻的2N个相邻像素。

公开(公告)号：US09055299B2

公开(公告)日：2015-06-09

申请号：US14307096

申请日：2014-06-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye Min ,  Tammy Lee ,  Il-koo Kim

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/50 ,  H04N19/119 ,  H04N19/61 ,  H04N19/96 ,  H04N19/117 ,  H04N19/157 ,  H04N19/82 ,  H04N19/86

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：US09049458B2

公开(公告)日：2015-06-02

申请号：US14589511

申请日：2015-01-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye Min ,  Woo-jin Han ,  Il-koo Kim

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/593

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: Disclosed are a method and apparatus for encoding a video, and a method and apparatus for decoding a video, in which neighboring pixels used to perform intra prediction on a current block to be encoded are filtered and intra prediction is performed by using the filtered neighboring pixels.

Abstract translation: 公开了一种用于对视频进行编码的方法和装置，以及用于对视频进行解码的方法和装置，其中用于对要编码的当前块进行帧内预测的相邻像素被滤波，并且通过使用滤波的相邻像素执行帧内预测 。

公开(公告)号：US08964840B2

公开(公告)日：2015-02-24

申请号：US13969871

申请日：2013-08-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jung-hye Min ,  Elena Alshina ,  Woo-jin Han

IPC: H04N7/12 ,  H04N11/04 ,  H04N11/02 ,  H04N19/503 ,  H04N19/186 ,  H04N19/122 ,  H04N19/107 ,  H04N19/176 ,  H04N19/96 ,  H04N19/11 ,  H04N19/593

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 and apparatus for determining an intra prediction mode of a coding unit. Candidate intra prediction modes of a chrominance component coding unit, which includes an intra prediction mode of a luminance component coding unit, are determined, and costs of the chrominance component coding unit according to the determined candidate intra prediction modes are compared to determine a minimum cost intra prediction mode to be the intra prediction mode of the chrominance component coding unit.

Abstract translation: 一种用于确定编码单元的帧内预测模式的方法和装置。 确定包括亮度分量编码单元的帧内预测模式的色度分量编码单元的候选帧内预测模式，并且比较根据确定的候选帧内预测模式的色度分量编码单元的成本，以确定最小成本 帧内预测模式为色度分量编码单元的帧内预测模式。

公开(公告)号：US20150043639A1

公开(公告)日：2015-02-12

申请号：US14387059

申请日：2013-03-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee ,  Byeong-doo Choi ,  Jung-hye Min ,  Yin-ji Piao

IPC: H04N19/30

CPC classification number: H04N19/30 ,  H04N19/119 ,  H04N19/50 ,  H04N19/61 ,  H04N19/96

Abstract: Provided are scalable video encoding and decoding methods and apparatuses. A scalable video encoding method includes: encoding a lower layer image according to coding units having a tree structure, the coding units hierarchically split from maximum coding units of an image; determining scalable coding modes for performing scalable encoding on a higher layer image based on the coding units having the tree structure by referring to the lower layer image; predicting and encoding the higher layer image by referring to encoding information of the lower layer image based on the determined scalable coding modes; and outputting coding modes, predicted values of the lower layer image, and the determined scalable coding modes of the higher layer image based on the determined scalable coding modes.

Abstract translation: 提供可扩展的视频编码和解码方法和装置。 可分级视频编码方法包括：根据具有树结构的编码单元编码下层图像，从图像的最大编码单元分层划分的编码单元; 基于具有参考下层图像的树结构的编码单元，确定用于对较高层图像执行可分级编码的可分级编码模式; 基于所确定的可伸缩编码模式，通过参考下层图像的编码信息来预测和编码较高层图像; 以及基于所确定的可缩放编码模式，输出编码模式，下层图像的预测值和确定的可分级编码模式。