公开(公告)号：US20140126646A1

公开(公告)日：2014-05-08

申请号：US14154021

申请日：2014-01-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Woo-jin HAN ,  Jung-hye MIN

IPC: H04N19/51

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：US20130279594A1

公开(公告)日：2013-10-24

申请号：US13925437

申请日：2013-06-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tammy LEE ,  Woo-jin HAN ,  Kyo-hyuk LEE

IPC: H04N7/36

CPC classification number: H04N19/139 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/865 ,  H04N19/96

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

Abstract translation: 提供了用于对运动矢量进行编码和解码的方法和装置。 对运动矢量进行编码的方法包括：作为对当前块的运动矢量预测器的信息进行编码的模式，选择对从至少一个运动矢量预测器中的运动矢量预测器进行编码的信息进行编码的第一模式， 第二模式，其中编码基于与当前块相邻的先前编码区域中包括的块或像素的运动矢量预测器的生成的信息; 根据所选择的模式确定当前块的运动矢量预测器，并对关于当前块的运动矢量预测器的信息进行编码; 并且对当前块的运动矢量与当前块的运动矢量预测器之间的差矢量进行编码。

公开(公告)号：US20130223541A1

公开(公告)日：2013-08-29

申请号：US13709560

申请日：2012-12-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woo-jin HAN

IPC: H04N7/26

CPC classification number: H04N19/85 ,  H04N19/12 ,  H04N19/164 ,  H04N19/177 ,  H04N19/46 ,  H04N19/88 ,  H04N19/90 ,  H04N21/234327 ,  H04N21/23439 ,  H04N21/2365 ,  H04N21/2662 ,  H04N21/4347 ,  H04N21/440227 ,  H04N21/8451

Abstract: A method and apparatus for video encoding, predecoding, and video decoding for video streaming services. The video encoding method includes encoding first and second video sequences into first and second bitstreams using scalable video coding, wherein at least one of resolution, frame rate, and image quality of the second video sequence is different from that of the first video sequence, and combining the first and second bitstreams into a super bitstream.

Abstract translation: 用于视频流服务的视频编码，预解码和视频解码的方法和装置。 视频编码方法包括使用可缩放视频编码将第一和第二视频序列编码到第一和第二比特流中，其中第二视频序列的分辨率，帧率和图像质量中的至少一个与第一视频序列的分辨率，帧速率和图像质量中的至少一个不同于第一视频序列， 将第一和第二比特流组合成超级比特流。

公开(公告)号：US20130148909A1

公开(公告)日：2013-06-13

申请号：US13759197

申请日：2013-02-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yu-mi SOHN ,  Woo-jin HAN

IPC: H04N7/26

CPC classification number: H04N19/105 ,  H04N19/109 ,  H04N19/11 ,  H04N19/122 ,  H04N19/147 ,  H04N19/169 ,  H04N19/176 ,  H04N19/50 ,  H04N19/523 ,  H04N19/593 ,  H04N19/61

Abstract: Provided are a method and apparatus for image encoding which improves encoding efficiency in accordance with image characteristics by performing prediction in lines and performing a one-dimensional transformation in lines on an input image, and a method and apparatus for image decoding. Encoding efficiency of an image may be improved by generating a prediction sub residual block using neighboring residues and performing a one-dimensional discrete cosine transformation (DCT) on a difference residual block which is a difference between an original sub residual block and the prediction sub residual block.

Abstract translation: 提供了一种用于图像编码的方法和装置，其通过在行上执行预测并且对输入图像上的行进行一维变换来提高根据图像特性的编码效率，以及用于图像解码的方法和装置。 可以通过使用相邻残差生成预测子残差块并对作为原始子残差块与预测子残差之间的差的差分残差块进行一维离散余弦变换（DCT）来提高图像的编码效率 块。

公开(公告)号：US20200045335A1

公开(公告)日：2020-02-06

申请号：US16598031

申请日：2019-10-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Woo-jin HAN

IPC: H04N19/56 ,  H04N19/46 ,  H04N19/503 ,  H04N19/51 ,  H04N19/52 ,  H04N19/61 ,  H04N19/172 ,  H04N19/176 ,  H04N19/513

Abstract: A method and apparatus for encoding and decoding a motion vector of a current block. The method of encoding including: generating information about the motion vector based on a motion vector of a current block and a motion vector predictor of the current block by estimating the motion vector and determining a first motion vector predictor candidate from among a plurality of motion vector predictor candidates as the motion vector predictor based on a result of the estimating; and generating a virtual motion vector by using a second motion vector predictor candidate and the information about the motion vector, generating vector differences between the virtual motion vector and the plurality of motion vector predictor candidates, comparing the vector differences with the information about the motion vector, and selectively excluding the second motion vector predictor candidate according to the comparing.

公开(公告)号：US20190364269A1

公开(公告)日：2019-11-28

申请号：US16538235

申请日：2019-08-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chang-Hyun LEE ,  Tammy LEE ,  Jianle CHEN ,  Dae-sung CHO ,  Woo-jin HAN ,  Il-koo KIM

IPC: H04N19/103 ,  H04N19/61 ,  H04N19/46 ,  H04N19/176 ,  H04N19/57 ,  H04N19/119

Abstract: A video encoding method and apparatus and a video decoding method and apparatus are provided. The video encoding method includes: prediction encoding in units of a coding unit as a data unit for encoding a picture, by using partitions determined based on a first partition mode and a partition level, so as to select a partition for outputting an encoding result from among the determined partitions; and encoding and outputting partition information representing a first partition mode and a partition level of the selected partition. The first partition mode represents a shape and directionality of a partition as a data unit for performing the prediction encoding on the coding unit, and the partition level represents a degree to which the coding unit is split into partitions for detailed motion prediction.

公开(公告)号：US20180338155A1

公开(公告)日：2018-11-22

申请号：US16047567

申请日：2018-07-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Woo-jin HAN

IPC: H04N19/56 ,  H04N19/513 ,  H04N19/176 ,  H04N19/172

CPC classification number: H04N19/56 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/46 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61

Abstract: A method and apparatus for encoding and decoding a motion vector of a current block. The method of encoding including: generating information about the motion vector based on a motion vector of a current block and a motion vector predictor of the current block by estimating the motion vector and determining a first motion vector predictor candidate from among a plurality of motion vector predictor candidates as the motion vector predictor based on a result of the estimating; and generating a virtual motion vector by using a second motion vector predictor candidate and the information about the motion vector, generating vector differences between the virtual motion vector and the plurality of motion vector predictor candidates, comparing the vector differences with the information about the motion vector, and selectively excluding the second motion vector predictor candidate according to the comparing.

公开(公告)号：US20180205950A1

公开(公告)日：2018-07-19

申请号：US15918347

申请日：2018-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-su CHEON ,  Woo-jin HAN ,  Hae-kyung JUNG ,  Il-koo KIM ,  Tammy LEE ,  Jianle CHEN

IPC: H04N19/122 ,  H04N19/119 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159

CPC classification number: H04N19/122 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/124 ,  H04N19/13 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/30 ,  H04N19/50 ,  H04N19/503 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91 ,  H04N19/96

Abstract: A method of decoding an image in which wherein, when a prediction mode is an inter prediction mode, not an intra prediction mode, a size of at least one prediction unit in the coding unit is determined independently from a size of at least one transformation unit in the coding unit.

公开(公告)号：US20170295381A1

公开(公告)日：2017-10-12

申请号：US15625640

申请日：2017-06-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woong-Il CHOI ,  Woo-jin HAN ,  Tammy LEE ,  Sun-il LEE

IPC: H04N19/91 ,  H04N19/176 ,  H04N19/124 ,  H04N19/44 ,  H04N19/61 ,  H04N19/70 ,  H04N19/30

CPC classification number: H04N19/91 ,  H04N19/124 ,  H04N19/172 ,  H04N19/176 ,  H04N19/30 ,  H04N19/44 ,  H04N19/61 ,  H04N19/70

Abstract: Entropy encoding and entropy decoding of image data are respectively performed whereby context modeling is performed on a context unit of blocks of the image data based on a context model of a previously encoded or decoded block.

公开(公告)号：US20170085882A1

公开(公告)日：2017-03-23

申请号：US15369958

申请日：2016-12-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Woo-jin HAN ,  Kyo-hyuk LEE

IPC: H04N19/139 ,  H04N19/61 ,  H04N19/105 ,  H04N19/117 ,  H04N19/86 ,  H04N19/124 ,  H04N19/159 ,  H04N19/52

CPC classification number: H04N19/139 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/865 ,  H04N19/96

Abstract: Provided are methods and apparatuses for encoding and decoding a motion vector including a method of decoding that includes obtaining a current coding unit hierarchically split from a maximum coding unit according to a current depth, obtaining a prediction mode information of a current prediction unit in the current coding unit from bitstream, when a prediction mode of the current prediction unit is inter-prediction mode, determining motion vector predictor candidates from among motion vectors of neighboring prediction units adjacent to the current prediction unit, and determining a motion vector predictor of the current prediction unit from among the motion vector predictor candidates, wherein the neighboring prediction unit comprises a first block directly to the left side of a leftmost block among blocks located directly to a bottom side of the current prediction unit and a second block located directly to a upper side of the first block.