公开(公告)号：US20140016705A1

公开(公告)日：2014-01-16

申请号：US14028816

申请日：2013-09-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N7/26

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 by hierarchically split from a maximum coding unit according to a current depth, obtaining a prediction mode information of a current coding unit from bitstream, determining motion vector predictor candidates from among motion vectors of adjacent coding unit adjacent to the current coding unit, and determining a motion vector predictor of the current coding unit from among the motion vector predictor candidates based on prediction mode information of the current coding unit, wherein the adjacent coding unit comprise a first block outside the current coding unit located on a lower-left side of the current coding unit.

Abstract translation: 提供了一种用于编码和解码运动矢量的方法和装置，包括解码方法，包括通过根据当前深度从最大编码单元分层分割获得当前编码单元，从比特流获取当前编码单元的预测模式信息 从与当前编码单元相邻的相邻编码单元的运动矢量中确定运动矢量预测器候选，以及基于当前编码单元的预测模式信息，从运动矢量预测器候选中确定当前编码单元的运动矢量预测器， 其中相邻编码单元包括位于当前编码单元的左下侧的当前编码单元外部的第一块。

公开(公告)号：US20130336390A1

公开(公告)日：2013-12-19

申请号：US13969721

申请日：2013-08-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tammy LEE ,  Woo-jin HAN ,  Jianle CHEN ,  Hae-kyung JUNG

IPC: H04N7/26

CPC classification number: H04N19/625 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/122 ,  H04N19/169 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: Disclosed are an image encoding method and apparatus for encoding an image by grouping a plurality of adjacent prediction units into a transformation unit and transforming the plurality of adjacent prediction into a frequency domain, and an image decoding method and apparatus for decoding an image encoded by using the image encoding method and apparatus.

公开(公告)号：US20180227583A1

公开(公告)日：2018-08-09

申请号：US15943005

申请日：2018-04-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

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

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：US20170324975A1

公开(公告)日：2017-11-09

申请号：US15656442

申请日：2017-07-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Woo-jin HAN

IPC: H04N19/513 ,  H04N19/70 ,  H04N19/61 ,  H04N19/577 ,  H04N19/124 ,  H04N19/51 ,  H04N19/159 ,  H04N19/176 ,  H04N19/96 ,  H04N19/56 ,  H04N19/182 ,  H04N19/172

CPC classification number: H04N19/513 ,  H04N19/124 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/51 ,  H04N19/56 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: An encoding method and apparatus and a decoding method and apparatus for determining a motion vector of a current block based on a motion vector of at least one previously-encoded or previously-decoded block are provided. The decoding method includes: decoding information regarding a prediction direction from among a first direction, a second direction, and bi-directions, and information regarding pixel values of the current block; determining the prediction direction in which the current block is to be predicted, based on the decoded information regarding the prediction direction, and determining a motion vector for predicting the current block in the determined prediction direction; and restoring the current block, based on the determined motion vector and the decoded information regarding the pixel values, wherein the first direction is a direction from a current picture to a previous picture, and the second direction is a direction from the current picture to a subsequent picture.

公开(公告)号：US20160261891A1

公开(公告)日：2016-09-08

申请号：US15155810

申请日：2016-05-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/91 ,  H04N19/44 ,  H04N19/70 ,  H04N19/172 ,  H04N19/61 ,  H04N19/176

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.

Abstract translation: 分别进行图像数据的熵编码和熵解码，由此基于先前编码或解码的块的上下文模型，对图像数据的块的上下文单元执行上下文建模。

公开(公告)号：US20150245058A1

公开(公告)日：2015-08-27

申请号：US14632132

申请日：2015-02-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Alexander ALSHIN ,  Elena ALSHINA ,  Jianle CHEN ,  Woo-jin HAN ,  Nikolay SHLYAKHOV ,  Yoon-mi HONG

IPC: H04N19/523 ,  H04N19/59 ,  H04N19/82 ,  H04N19/513

CPC classification number: H04N19/86 ,  G06F17/17 ,  G06F17/175 ,  G06T3/4007 ,  G06T5/002 ,  H04N19/117 ,  H04N19/182 ,  H04N19/186 ,  H04N19/42 ,  H04N19/43 ,  H04N19/521 ,  H04N19/523 ,  H04N19/59 ,  H04N19/635 ,  H04N19/80 ,  H04N19/82

Abstract: Provided are a method of interpolating an image by determining interpolation filter coefficients, and an apparatus for performing the same. The method includes: differently selecting an interpolation filter, from among interpolation filters for generating at least one sub-pel-unit pixel value located between integer-pel-unit pixels, based on a sub-pel-unit interpolation location and a smoothness; and generating the at least one sub-pel-unit pixel value by interpolating, using the selected interpolation filter, pixel values of the integer-pel-unit pixels.

公开(公告)号：US20150163515A1

公开(公告)日：2015-06-11

申请号：US14626489

申请日：2015-02-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Woo-jin HAN

IPC: H04N19/60 ,  H04N19/136 ,  H04N19/44

CPC classification number: H04N19/61 ,  H04N19/119 ,  H04N19/122 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/96

Abstract: A video encoding method is provided, the method includes: encoding a current region of a video by performing a transformation on the current region by using transformation units in a variable tree-structure which are determined from among transformation units that are hierarchically split from a base transformation unit with respect to the current region and which are generated based on a maximum split level of a transformation unit; and outputting encoded data of the current region, information about an encoding mode, and transformation-unit hierarchical-structure information comprising maximum size information and minimum size information of the transformation unit with respect to the video.

公开(公告)号：US20150156505A1

公开(公告)日：2015-06-04

申请号：US14619323

申请日：2015-02-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

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

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 the 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：US20150156503A1

公开(公告)日：2015-06-04

申请号：US14619187

申请日：2015-02-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/44 ,  H04N19/63 ,  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 decoding apparatus for decoding an image by obtaining transformation coefficients of a sub residual block based on location information of at least one non-zero transformation coefficient and level information of the at least one non-zero transformation coefficient obtained from a bitstream.

Abstract translation: 一种解码装置，用于通过基于从比特流获得的至少一个非零变换系数和至少一个非零变换系数的位置信息的位置信息获得子残差块的变换系数来解码图像。

公开(公告)号：US20150146792A1

公开(公告)日：2015-05-28

申请号：US14611679

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: H04N19/60 ,  H04N19/44

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.