公开(公告)号：US11490091B2

公开(公告)日：2022-11-01

申请号：US17231763

申请日：2021-04-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Il-koo Kim ,  Young-o Park

IPC: H04N19/136 ,  H04N19/70 ,  H04N19/463 ,  H04N19/58 ,  H04N19/124 ,  H04N19/172 ,  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：US11012739B2

公开(公告)日：2021-05-18

申请号：US16084030

申请日：2017-03-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae-kwon Chang ,  Sang-ha Kim ,  Sung-jin Kim ,  Il-koo Kim ,  Sung-kweon Park ,  Young-o Park ,  Won-young Jang

IPC: H04N21/44 ,  H04N21/431 ,  H04N21/25 ,  G06K9/32 ,  G06Q30/02 ,  H04N5/445 ,  H04N21/258

Abstract: Provided is a method, performed by a device, of recognizing content, the method including selecting a template to be used for recognizing content displayed on the device when a type of a content service that provides the content to the device is determined; capturing a screen of the device when a control signal is received by the device; determining whether the captured screen corresponds to a gateway page; determining whether the captured screen corresponds to the selected template when the captured screen corresponds to the gateway page; and generating a template corresponding to the content service, based on the captured screen, when the captured screen does not correspond to the selected template.

公开(公告)号：US10609378B2

公开(公告)日：2020-03-31

申请号：US16207656

申请日：2018-12-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Il-koo Kim ,  Young-o Park

IPC: H04N19/58 ,  H04N19/136 ,  H04N19/70 ,  H04N19/463 ,  H04N19/124 ,  H04N19/172 ,  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：US10419751B2

公开(公告)日：2019-09-17

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: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/103 ,  H04N19/57 ,  H04N19/46 ,  H04N19/61 ,  H04N19/176 ,  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：US10194173B2

公开(公告)日：2019-01-29

申请号：US15991831

申请日：2018-05-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/61 ,  H04N19/176 ,  H04N19/44 ,  H04N19/186 ,  H04N19/60 ,  H04N19/46 ,  H04N19/96 ,  H04N19/70 ,  H04N19/18 ,  H04N19/129 ,  H04N19/119 ,  H04N19/147

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：US10051282B2

公开(公告)日：2018-08-14

申请号：US14898291

申请日：2014-06-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jie Chen ,  Il-koo Kim

IPC: H04N7/12 ,  H04N19/52 ,  H04N19/503 ,  H04N19/136 ,  H04N19/176 ,  H04N19/44

Abstract: Provided is a method for obtaining motion information in video encoding/decoding, which includes calculating a first predictor of a motion vector of a current block/sub-block according to a motion vector of each reference block in a first reference block set of the current block/sub-block; determining a first motion vector difference between a motion vector of each reference block in a second reference block set of the current block/sub-block and a first predictor of the motion vector of the reference block in the second reference block set of the current block/sub-block; predicting a first motion vector difference between the motion vector of the current block/sub-block and the first predictor of the motion vector of the current block/sub-block according to the first motion vector difference of each reference block in the second reference block set to obtain a predictor of the first motion vector difference of the current block/sub-block; and determining a second predictor of the motion vector of the current block/sub-block according to the predictor of the first motion vector difference of the current block/sub-block and the first predictor of the motion vector of the current block/sub-block. The method makes it possible to improve encoding/decoding performance.

公开(公告)号：US09888263B2

公开(公告)日：2018-02-06

申请号：US14636571

申请日：2015-03-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Il-koo Kim ,  Jeong-hoon Park

IPC: H04N19/91 ,  H04N19/13 ,  H04N19/136 ,  H04N19/18 ,  H04N19/44 ,  H04N19/61 ,  H04N19/82 ,  H04N19/169 ,  H04N19/129 ,  H04N19/96

CPC classification number: H04N19/91 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/18 ,  H04N19/1887 ,  H04N19/44 ,  H04N19/61 ,  H04N19/82 ,  H04N19/96

Abstract: Methods and apparatuses for arithmetic encoding/decoding of video data. The arithmetic decoding method includes arithmetically decoding prefix bit strings representing a two-dimensional location of a last significant coefficient in a block sequentially by using a context model, arithmetically decoding suffix bit strings in a bypass mode, and performing inverse binarization on the arithmetically decoded prefix bit strings and suffix bit strings to acquire the location of the last significant coefficient in the block.

公开(公告)号：US09743109B2

公开(公告)日：2017-08-22

申请号：US15140731

申请日：2016-04-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/593 ,  H04N19/139 ,  H04N19/146 ,  H04N19/196 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46 ,  H04N19/122 ,  H04N19/61 ,  H04N19/96 ,  H04N19/44 ,  H04N19/50 ,  H04N19/587 ,  H04N19/172 ,  H04N19/184

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/122 ,  H04N19/139 ,  H04N19/146 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/197 ,  H04N19/44 ,  H04N19/46 ,  H04N19/50 ,  H04N19/587 ,  H04N19/61 ,  H04N19/96

Abstract: A video decoding method and apparatus and a video encoding method and apparatus based on a scanning order of hierarchical data units are provided. The decoding method includes: receiving and parsing a bitstream of an encoded video; extracting from the bitstream information about a size of a maximum coding unit for decoding a picture of the encoded video, and encoding information about a coded depth and an encoding mode for coding units of the picture, wherein the size of the maximum coding unit is a maximum size of a coding unit which is a data unit for decoding the picture; and determining a hierarchical structure of the maximum coding unit and the coding units into which the picture is divided according to depths, and decoding the picture based on the coding units, by using the information about the size of the maximum coding unit and the encoding information about the coded depth and the encoded mode.

公开(公告)号：US09628812B2

公开(公告)日：2017-04-18

申请号：US14704019

申请日：2015-05-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/44 ,  H04N19/46 ,  H04N19/60

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

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.

公开(公告)号：US09602828B2

公开(公告)日：2017-03-21

申请号：US15098483

申请日：2016-04-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N7/12 ,  H04N19/33 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/513 ,  H04N19/122 ,  H04N19/61 ,  H04N19/174 ,  H04N19/436 ,  H04N19/139 ,  H04N19/146 ,  H04N19/43 ,  H04N19/44 ,  H04N19/52 ,  H04N19/13 ,  H04N19/593 ,  H04N19/82 ,  H04N19/86

CPC classification number: H04N19/33 ,  H04N19/119 ,  H04N19/122 ,  H04N19/13 ,  H04N19/139 ,  H04N19/146 ,  H04N19/174 ,  H04N19/176 ,  H04N19/43 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/86

Abstract: A video decoding method including: extracting, from a bitstream of an encoded video, at least one of information indicating independent parsing of a data unit and information indicating independent decoding of a data unit; extracting encoded video data and information about a coded depth and an encoding mode according to maximum coding units by parsing the bitstream based on the information indicating independent parsing of the data unit; and decoding at least one coding unit according to a coded depth of each maximum coding unit of the encoded video data, based on the information indicating independent decoding in the data unit and the information about the coded depth and the encoding mode according to maximum coding units.