公开(公告)号：US20190222860A1

公开(公告)日：2019-07-18

申请号：US16363590

申请日：2019-03-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Jianle CHEN

IPC: H04N19/52 ,  H04N19/65 ,  H04N19/139 ,  H04N19/105 ,  H04N19/517 ,  H04N19/513

CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/513 ,  H04N19/517 ,  H04N19/521 ,  H04N19/65

Abstract: Provided are methods and apparatus for encoding and decoding motion information. The method of encoding motion information includes: obtaining a motion information candidate by using motion information of prediction units that are temporally or spatially related to a current prediction unit; adding, when the number of motion information included in the motion information candidate is smaller than a predetermined number n, alternative motion information to the motion information candidate so that the number of motion information included in the motion information candidate reaches the predetermined number n; determining motion information with respect to the current prediction unit from among the n motion information candidates; and encoding index information indicating the determined motion information as motion information of the current prediction unit.

公开(公告)号：US20190222850A1

公开(公告)日：2019-07-18

申请号：US16366184

申请日：2019-03-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy LEE ,  Jianle CHEN

IPC: H04N19/159 ,  H04N19/182 ,  H04N19/136 ,  H04N19/593 ,  H04N19/176 ,  H04N19/105 ,  H04N19/11

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/136 ,  H04N19/176 ,  H04N19/182 ,  H04N19/593

Abstract: A method and apparatus for intra predicting a video. The method includes: determining availability of a predetermined number of adjacent pixels used for intra prediction of a current block; if a first adjacent pixel is unavailable, searching for a second adjacent pixel that is available by searching the predetermined number of adjacent pixels in a predetermined direction based on the first adjacent pixel; and replacing a pixel value of the first adjacent pixel with a pixel value of a found second adjacent pixel. At least one third adjacent pixel in another location, which is not available and excludes the first adjacent pixel at a predetermined location, is to sequentially replaced by using a directly adjacent pixel in a predetermined direction.

公开(公告)号：US20180310026A1

公开(公告)日：2018-10-25

申请号：US16025391

申请日：2018-07-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yoon-Mi HONG ,  Woo-Jin HAN ,  Min-Su CHEON ,  Jianle CHEN

IPC: H04N19/60 ,  H04N19/176 ,  H04N19/126 ,  H04N19/625 ,  G06F17/14

CPC classification number: H04N19/60 ,  G06F17/147 ,  H04N19/126 ,  H04N19/176 ,  H04N19/625

Abstract: A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus are provided. The video encoding method includes producing a fast transform matrix based on a transform matrix which is used for frequency transformation on a block which has a predetermined size; producing a transformed block by transforming the block having the predetermined size by using the fast transform matrix; and performing scaling with respect to the transformed block in order to correct a difference between the transform matrix used for the frequency transformation and the fast transform matrix.

公开(公告)号：US20180041775A1

公开(公告)日：2018-02-08

申请号：US15700668

申请日：2017-09-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yoon-Mi HONG ,  Woo-Jin HAN ,  Min-Su CHEON ,  Jianle CHEN

IPC: H04N19/60 ,  H04N19/126 ,  G06F17/14 ,  H04N19/625 ,  H04N19/176

CPC classification number: H04N19/60 ,  G06F17/147 ,  H04N19/126 ,  H04N19/176 ,  H04N19/625

Abstract: A video encoding method, a video encoding apparatus, a video decoding method, and a video decoding apparatus are provided. The video encoding method includes producing a fast transform matrix based on a transform matrix which is used for frequency transformation on a block which has a predetermined size; producing a transformed block by transforming the block having the predetermined size by using the fast transform matrix; and performing scaling with respect to the transformed block in order to correct a difference between the transform matrix used for the frequency transformation and the fast transform matrix.

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：US20140294311A1

公开(公告)日：2014-10-02

申请号：US14299155

申请日：2014-06-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G06T9/00

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

Abstract: An image decoding method including determining coding units having a hierarchical structure for decoding an image using split information of a coding unit, determining at least one prediction unit for predicting a coding unit among the coding units using information about a partition type, and determining at least one transformation unit for inversely transforming the coding unit using information about a depth of the at least one transformation unit, wherein the split information of a coding unit, the information about a partition type and the information about a depth of the at least one transformation unit are parsed from a bitstream, parsing from the bitstream transformation coefficients generated by transformation according to the at least one transformation unit generated by dividing the coding unit, and reconstructing residual of the at least one transformation unit by performing inverse quantization, and inverse transformation on the parsed transformation coefficients, and performing intra prediction or inter prediction on the prediction unit to generate a predictor, and reconstructing the image based on the residual and the predictor.

Abstract translation: 一种图像解码方法，包括确定具有用于使用编码单元的分割信息对图像进行解码的分层结构的编码单元，使用关于分割类型的信息确定用于预测编码单元中的编码单位的至少一个预测单元，以及至少确定 一个变换单元，用于使用关于所述至少一个变换单元的深度的信息对所述编码单元进行逆变换，其中编码单元的分割信息，关于分区类型的信息以及关于所述至少一个变换单元的深度的信息 从比特流解析，根据通过对编码单位进行分割而生成的至少一个变换单位的变换生成的比特变换系数进行解析，并且通过执行逆量化来重构至少一个变换单元的残差，以及对 解析变换系数，和perf 在所述预测单元上建立帧内预测或帧间预测以生成预测器，以及基于所述残差和所述预测器来重构所述图像。

公开(公告)号：US20140286590A1

公开(公告)日：2014-09-25

申请号：US14299316

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 ,  H04N19/124 ,  H04N19/593 ,  H04N19/91 ,  H04N19/503

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: An apparatus for decoding an image includes an entropy decoder that performs entropy-decoding to obtain quantized transformation coefficients of at least one transformation unit in a coding unit of the image, an inverse transformer that performs inverse-quantization and inverse-transformation on the quantized transformation coefficients of the at least one transformation unit to obtain residuals, and a restorer that performs inter prediction for at least one prediction unit in the coding unit to generate a predictor and restores the image by using the residuals and the predictor.

Abstract translation: 一种用于对图像进行解码的装置包括：熵解码器，进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，对量化变换执行逆量化和逆变换的逆变换器 所述至少一个变换单元的系数以获得残差;以及恢复器，对所述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，并通过使用所述残差和所述预测器恢复所述图像。

公开(公告)号：US20130148727A1

公开(公告)日：2013-06-13

申请号：US13764119

申请日：2013-02-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jianle CHEN ,  Min-su CHEON ,  Jae-chool LEE ,  Jung-hye MIN ,  Hae-kyung JUNG ,  Il-koo KIM ,  Sang-rae LEE ,  Kyo-hyuk LEE

IPC: H04N7/26

CPC classification number: H04N19/50 ,  H04N19/103 ,  H04N19/105 ,  H04N19/119 ,  H04N19/122 ,  H04N19/132 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/30 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61 ,  H04N19/96 ,  Y02T10/84

Abstract: Disclosed is a method of encoding a video, the method including: splitting a current picture into at least one maximum coding unit; determining a coded depth to output a final encoding result according to at least one split region obtained by splitting a region of the maximum coding unit according to depths, by encoding the at least one split region, based on a depth that deepens in proportion to the number of times the region of the maximum coding unit is split; and outputting image data constituting the final encoding result according to the at least one split region, and encoding information about the coded depth and a prediction mode, according to the at least one maximum coding unit.

Abstract translation: 公开了一种对视频进行编码的方法，该方法包括：将当前画面分割成至少一个最大编码单元; 根据至少一个分割区域确定编码深度以输出最终的编码结果，所述至少一个分割区域通过根据深度与所述最大编码单元的比例增加的深度来编码所述至少一个分割区域来分割所述最大编码单元的区域， 分割最大编码单位的区域的次数; 以及根据所述至少一个分割区域输出构成最终编码结果的图像数据，以及根据所述至少一个最大编码单元编码关于编码深度的信息和预测模式。

公开(公告)号：US20190132587A1

公开(公告)日：2019-05-02

申请号：US16232156

申请日：2018-12-26

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 ,  H04N19/57 ,  H04N19/119 ,  H04N19/61 ,  H04N19/176 ,  H04N19/46

CPC classification number: H04N19/103 ,  H04N19/119 ,  H04N19/176 ,  H04N19/46 ,  H04N19/57 ,  H04N19/61

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：US20170150146A1

公开(公告)日：2017-05-25

申请号：US15416776

申请日：2017-01-26

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 ,  H04N19/159 ,  H04N19/13

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.