公开(公告)号：US11962791B2

公开(公告)日：2024-04-16

申请号：US17531386

申请日：2021-11-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young-o Park ,  Il-koo Kim ,  Chan-yul Kim ,  Kwang-pyo Choi

IPC: H04N19/19 ,  H04N19/196 ,  H04N19/463 ,  H04N19/58

CPC classification number: H04N19/19 ,  H04N19/196 ,  H04N19/463 ,  H04N19/58

Abstract: Provided are an inter prediction method and a motion compensation method. The inter prediction method includes: performing inter prediction on a current image by using a long-term reference image stored in a decoded picture buffer; determining residual data and a motion vector of the current image generated via the inter prediction; and determining least significant bit (LSB) information as a long-term reference index indicating the long-term reference image by dividing picture order count (POC) information of the long-term reference image into most significant bit (MSB) information and the LSB information.

公开(公告)号：US11856201B2

公开(公告)日：2023-12-26

申请号：US17956203

申请日：2022-09-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Il-koo Kim ,  Young-o Park

IPC: H04N19/136 ,  H04N19/70 ,  H04N19/463 ,  H04N19/58 ,  H04N19/172 ,  H04N19/124 ,  H04N19/174 ,  H04N19/86

CPC classification number: H04N19/136 ,  H04N19/124 ,  H04N19/172 ,  H04N19/463 ,  H04N19/58 ,  H04N19/70 ,  H04N19/174 ,  H04N19/86

Abstract: A method of determining a reference picture set (RPS), which is a set of reference pictures used in predictive decoding of a current picture that is to be decoded includes: obtaining a flag indicating whether the RPS is determined based on picture order count (POC) values of the current picture and a previous picture or whether the RPS is determined based on an index of a reference RPS, which is an identification value of the reference RPS that is one of pre-defined RPSs and is referred to in determining the RPS, and a delta RPS that is a difference value between a POC vale of a reference picture included in the reference RPS and a POC value of a reference picture included in the RPS; and determining the RPS according to a value of the flag.

公开(公告)号：US11206414B2

公开(公告)日：2021-12-21

申请号：US17061149

申请日：2020-10-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young-o Park ,  Il-koo Kim ,  Chan-yul Kim ,  Kwang-pyo Choi

IPC: H04N19/19 ,  H04N19/196 ,  H04N19/463 ,  H04N19/58

Abstract: Provided are an inter prediction method and a motion compensation method. The inter prediction method includes: performing inter prediction on a current image by using a long-term reference image stored in a decoded picture buffer; determining residual data and a motion vector of the current image generated via the inter prediction; and determining least significant bit (LSB) information as a long-term reference index indicating the long-term reference image by dividing picture order count (POC) information of the long-term reference image into most significant bit (MSB) information and the LSB information.

公开(公告)号：US10417766B2

公开(公告)日：2019-09-17

申请号：US15526607

申请日：2015-08-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae-gyu Lim ,  Il-koo Kim ,  Seung-hoon Han

IPC: G06K9/34 ,  G06K9/46 ,  G06K9/36 ,  H04N7/12 ,  G06T7/11 ,  G06K9/62 ,  G06T7/168 ,  H04N7/01 ,  H04N7/015 ,  G06T7/42

Abstract: Provided are a method and device for generating metadata including frequency characteristic information of an image. Pixel values of a current block among blocks divided from the image are converted into frequency coefficients in the frequency domain. A band value of a frequency band corresponding to each of regions of the current block is determined using the frequency coefficients included in the regions of the current block, the regions of the current block being divided to correspond to different frequency bands. Metadata including the frequency characteristic information of the current block is generated based on the determined band values.

公开(公告)号：US10412411B2

公开(公告)日：2019-09-10

申请号：US15903982

申请日：2018-02-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/50 ,  H04N19/59 ,  H04N19/176 ,  H04N19/196 ,  H04N19/80 ,  H04N19/119 ,  H04N19/147 ,  H04N19/61 ,  H04N19/96 ,  H04N19/513 ,  H04N19/593 ,  H04N19/44 ,  H04N19/52 ,  H04N19/172 ,  H04N19/159 ,  H04N19/139 ,  H04N19/117 ,  H04N19/82 ,  H04N19/86 ,  H04N19/30 ,  H04N19/184

Abstract: Provided are a method and apparatus for encoding a video and a method and apparatus for decoding a video. The encoding method includes: splitting a picture of the video into one or more maximum coding units; encoding the picture based on coding units according to depths which are obtained based on a partition type determined according to the depths of the coding units according to depths, determining coding units according to coded depths with respect to each of the coding units according to depths, and thus determining coding units having a tree structure; and outputting data that is encoded based on the partition type and the coding units having the tree structure, information about the coded depths and an encoding mode, and coding unit structure information indicating a size and a variable depth of a coding unit.

公开(公告)号：US10397601B2

公开(公告)日：2019-08-27

申请号：US16043911

申请日：2018-07-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Il-koo Kim

IPC: H04N19/52 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/513 ,  H04N19/96 ,  H04N19/573 ,  H04N19/577 ,  H04N19/103 ,  H04N19/583

Abstract: Provided is an inter prediction method including determining a collocated block of a current block of a current image from among blocks of an image that is restored prior to the current image; preferentially checking whether a first reference list from among reference lists of the collocated block is referred to and selectively checking whether a second reference list is referred to according to whether the first reference list is referred to; based on a result of the checking, determining a single collocated reference list from among the first reference list and the second reference list; determining a reference block of the current block by using motion information of the collocated reference list; and performing inter prediction on the current block by using the determined reference block.

公开(公告)号：US10015520B2

公开(公告)日：2018-07-03

申请号：US15463648

申请日：2017-03-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/61 ,  H04N19/18

CPC classification number: H04N19/61 ,  H04N19/119 ,  H04N19/129 ,  H04N19/147 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/44 ,  H04N19/46 ,  H04N19/60 ,  H04N19/70 ,  H04N19/96 ,  H05K999/99

Abstract: A video decoding apparatus including an extractor which extracts from a bitstream first pattern information indicating whether residual samples of a current coding unit are equal to 0, and when the first pattern information indicates the residual samples are not equal to 0, extracts from the bitstream transformation index information indicating whether a transformation unit of a current level included in the current coding unit is split, a decoder which splits the transformation unit of the current level into transformation units of a lower level when the transformation index information indicates a split of the transformation unit of the current level, wherein the extractor further extracts second pattern information for the transformation unit of the current level when the transformation index information indicates a non-split of the transformation unit of the current level, wherein the second pattern information indicates whether the transformation unit of the current level contains one or more transform coefficients not equal to 0, wherein the transformation unit of the current level is split into four transformation units of the lower level.

公开(公告)号：US09936216B2

公开(公告)日：2018-04-03

申请号：US15618483

申请日：2017-06-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/119 ,  H04N19/50 ,  H04N19/196 ,  H04N19/147 ,  H04N19/61 ,  H04N19/96 ,  H04N19/172 ,  H04N19/176 ,  H04N19/513 ,  H04N19/593 ,  H04N19/44 ,  H04N19/52 ,  H04N19/139 ,  H04N19/117 ,  H04N19/82 ,  H04N19/86 ,  H04N19/159 ,  H04N19/184

CPC classification number: H04N19/50 ,  H04N19/117 ,  H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/197 ,  H04N19/30 ,  H04N19/44 ,  H04N19/513 ,  H04N19/52 ,  H04N19/59 ,  H04N19/593 ,  H04N19/61 ,  H04N19/80 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

Abstract: Provided are a method and apparatus for encoding a video and a method and apparatus for decoding a video. The encoding method includes: splitting a picture of the video into one or more maximum coding units; encoding the picture based on coding units according to depths which are obtained based on a partition type determined according to the depths of the coding units according to depths, determining coding units according to coded depths with respect to each of the coding units according to depths, and thus determining coding units having a tree structure; and outputting data that is encoded based on the partition type and the coding units having the tree structure, information about the coded depths and an encoding mode, and coding unit structure information indicating a size and a variable depth of a coding unit.

公开(公告)号：US09800872B2

公开(公告)日：2017-10-24

申请号：US14299897

申请日：2014-06-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tammy Lee ,  Woo-jin Han ,  Il-koo Kim ,  Sun-il Lee

IPC: H04N19/105 ,  H04N19/137 ,  H04N19/56 ,  H04N19/52 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70 ,  H04N19/196 ,  H04N19/96 ,  H04N19/103 ,  H04N19/463 ,  H04N19/14 ,  H04N19/174 ,  H04N19/139 ,  H04N19/30 ,  H04N19/33

CPC classification number: H04N19/137 ,  H04N19/103 ,  H04N19/105 ,  H04N19/139 ,  H04N19/14 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/196 ,  H04N19/30 ,  H04N19/33 ,  H04N19/463 ,  H04N19/52 ,  H04N19/56 ,  H04N19/70 ,  H04N19/96

Abstract: Provided are a method and apparatus for encoding a video by using block merging and a method and apparatus for decoding a video by using block merging. The method of encoding includes: determining an encoding mode indicating a current data unit for encoding of a picture and an encoding method including prediction encoding performed for the current data unit; determining an occurrence of merging with at least one neighboring data unit based on at least one of the encoding mode and a prediction mode; and determining prediction mode information, merging related information, and prediction related information, and determining encoding information of the data unit including the prediction mode information, the merging related information, and the prediction related information.

公开(公告)号：US09668001B2

公开(公告)日：2017-05-30

申请号：US14635725

申请日：2015-03-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim Seregin ,  Il-koo Kim

IPC: H04N7/12 ,  G06K9/36 ,  H04N19/91 ,  H04N19/169 ,  H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/44 ,  H04N19/60 ,  H04N19/593

CPC classification number: H04N19/13 ,  H04N19/157 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/593 ,  H04N19/60 ,  H04N19/91

Abstract: A method of decoding a video through symbol decoding includes parsing symbols of image blocks from a received bitstream; classifying a current symbol into a prefix bit string and a suffix bit string based on a threshold value determined according to a size of a current block; performing arithmetic decoding of the prefix bit string and the suffix bit string by using respective arithmetic decoding methods determined for each of the prefix bit string and the suffix bit string; performing inverse binarization of the prefix bit string and the suffix bit string by using respective binarization methods determined for each of the prefix bit string and the suffix bit string; and restoring the image blocks by performing an inverse transformation operation and a prediction operation on the current block by using the current symbol restored through the arithmetic decoding and the inverse binarization.