公开(公告)号：US20150264379A1

公开(公告)日：2015-09-17

申请号：US14723992

申请日：2015-05-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Jianle CHEN

IPC: H04N19/51 ,  H04N19/13 ,  H04N19/61 ,  H04N19/91

CPC classification number: H04N19/52 ,  H04N19/13 ,  H04N19/51 ,  H04N19/593 ,  H04N19/61 ,  H04N19/82 ,  H04N19/91 ,  H04N19/96

Abstract: Provided are a method and apparatus for intra predicting an image, which generate a prediction value via linear interpolation in horizontal and vertical directions of a current prediction unit. The method includes: generating first and second virtual pixels by using at least one adjacent pixel located upper right and lower left to a current prediction unit; obtaining a first prediction value of a current pixel via linear interpolation using an adjacent left pixel located on the same line as the first virtual pixel and the current pixel; obtaining a second prediction value of the current pixel via linear interpolation using an adjacent upper pixel located on the same column as the second virtual pixel and the current pixel; and obtaining a prediction value of the current pixel by using the first and second prediction values.

公开(公告)号：US20150178892A1

公开(公告)日：2015-06-25

申请号：US14636841

申请日：2015-03-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena ALSHINA ,  Alexander ALSHIN ,  Nikolay SHLYAKHOV ,  Byeong-doo CHOI ,  Yoon-mi HONG ,  Woo-jin HAN ,  Tammy LEE

IPC: G06T3/40 ,  H04N19/80 ,  H04N19/59 ,  H04N19/30 ,  H04N19/117 ,  H04N19/182 ,  H04N7/01 ,  H04N19/48 ,  H04N19/523

CPC classification number: G06T3/4007 ,  G06F17/175 ,  H04N7/014 ,  H04N19/117 ,  H04N19/182 ,  H04N19/30 ,  H04N19/48 ,  H04N19/523 ,  H04N19/59 ,  H04N19/80

Abstract: Provided are a method and apparatus for interpolating an image. The method includes: selecting a first filter, from among a plurality of different filters, for interpolating between pixel values of integer pixel units, according to an interpolation location; and generating at least one pixel value of at least one fractional pixel unit by interpolating between the pixel values of the integer pixel units by using the selected first filter.

公开(公告)号：US20150178890A1

公开(公告)日：2015-06-25

申请号：US14636787

申请日：2015-03-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Elena ALSHINA ,  Alexander ALSHIN ,  Nikolay SHLYAKHOV ,  Byeong-doo CHOI ,  Yoon-mi HONG ,  Woo-jin HAN ,  Tammy LEE

IPC: G06T3/40 ,  H04N19/80 ,  H04N7/01 ,  H04N19/523 ,  H04N19/117 ,  H04N19/182 ,  H04N19/48 ,  H04N19/59

CPC classification number: G06T3/4007 ,  G06F17/175 ,  H04N7/014 ,  H04N19/117 ,  H04N19/182 ,  H04N19/30 ,  H04N19/48 ,  H04N19/523 ,  H04N19/59 ,  H04N19/80

Abstract: Provided are a method and apparatus for interpolating an image. The method includes: selecting a first filter, from among a plurality of different filters, for interpolating between pixel values of integer pixel units, according to an interpolation location; and generating at least one pixel value of at least one fractional pixel unit by interpolating between the pixel values of the integer pixel units by using the selected first filter.

Abstract translation: 提供了一种用于内插图像的方法和装置。 该方法包括：根据插值位置，从多个不同滤波器中选择第一滤波器，用于在整数像素单元的像素值之间进行内插; 以及通过使用所选择的第一滤波器在整数像素单元的像素值之间进行内插来生成至少一个分数像素单元的至少一个像素值。

公开(公告)号：US20150163511A1

公开(公告)日：2015-06-11

申请号：US14627952

申请日：2015-02-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chan-yul KIM ,  Tammy LEE ,  Elena ALSHINA

IPC: H04N19/577 ,  H04N19/573 ,  H04N19/513

CPC classification number: H04N19/577 ,  H04N19/103 ,  H04N19/105 ,  H04N19/122 ,  H04N19/157 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/18 ,  H04N19/521 ,  H04N19/57 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70 ,  H04N19/96

Abstract: A motion prediction method includes determining, when a current slice is a B slice, a reference picture list to be used with respect to a current prediction unit from among prediction units included in a coding unit, and outputting, when a size of the current prediction unit is 4×8 or 8×4, inter-prediction index information of the current prediction unit indicating the reference picture list from among an L0 list and an L1 list, and when the size of the current prediction unit is not 4×8 or 8×4, the inter-prediction index information of the current prediction unit indicating the reference picture list from among the L0 list, the L1 list, and a bi-prediction list.

公开(公告)号：US20150146793A1

公开(公告)日：2015-05-28

申请号：US14611731

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.

公开(公告)号：US20150030086A1

公开(公告)日：2015-01-29

申请号：US14514892

申请日：2014-10-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung-soo JEONG ,  Tammy LEE ,  Jae-hyun KIM ,  Chan-yul KIM ,  Jeong-hoon PARK

IPC: H04N19/436 ,  H04N19/70 ,  H04N19/44

CPC classification number: H04N19/436 ,  H04N19/174 ,  H04N19/44 ,  H04N19/70

Abstract: Provided are video encoding and decoding methods and apparatuses for parallel processing. The video decoding method includes obtaining a parallel processing syntax indicating a parallel processing type that is applied to a second data unit of a lower level from a first data unit header of an upper level, obtaining a parallel processing flag indicating whether the parallel processing type is applied to the second data unit from a second data unit header, and determining whether the parallel processing type is applied to the second data unit based on the obtained parallel processing flag.

Abstract translation: 提供了用于并行处理的视频编码和解码方法和装置。 视频解码方法包括：从上级的第一数据单元头获取指示应用于较低级别的第二数据单元的并行处理类型的并行处理语法，获得表示并行处理类型是否为 从第二数据单元头部应用于第二数据单元，并且基于获得的并行处理标志来确定并行处理类型是否被应用于第二数据单元。

公开(公告)号：US20140286591A1

公开(公告)日：2014-09-25

申请号：US14299427

申请日：2014-06-09

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H04N19/61 ,  H04N19/503 ,  H04N19/91 ,  H04N19/124

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 including performing entropy-decoding to obtain quantized transformation coefficients of at least one transformation unit in a coding unit of the image, performing inverse-quantization and inverse-transformation on the quantized transformation coefficients of the at least one transformation unit to obtain residuals, and performing inter prediction for at least one prediction unit in the coding unit to generate a predictor and restoring the image by using the residuals and the predictor.

Abstract translation: 一种解码图像的方法，包括执行熵解码以获得图像的编码单元中的至少一个变换单元的量化变换系数，对至少一个变换单元的量化变换系数进行逆量化和逆变换 以获得残差，并对编码单元中的至少一个预测单元执行帧间预测，以生成预测器，并通过使用残差和预测器来恢复图像。

公开(公告)号：US20130336392A1

公开(公告)日：2013-12-19

申请号：US13969841

申请日：2013-08-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N7/50

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：US20130279593A1

公开(公告)日：2013-10-24

申请号：US13925337

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.

公开(公告)号：US20130142264A1

公开(公告)日：2013-06-06

申请号：US13755041

申请日：2013-01-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Woo-jin HAN

IPC: H04N7/26

CPC classification number: H04N19/521 ,  H04N19/105 ,  H04N19/137 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61

Abstract: Provided are a method and apparatus for estimating a motion vector using a plurality of motion vector predictors, an encoder, a decoder, and a decoding method. The method includes calculating spatial similarities between the current block and the plurality of neighboring partitions around the current block, selecting at least one of the neighboring partitions based on the calculated spatial similarities, and estimating a motion vector of the selected partition as the motion vector of the current block.