公开(公告)号：US11831904B2

公开(公告)日：2023-11-28

申请号：US17971883

申请日：2022-10-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-young Lee ,  Seung-soo Jeong ,  Jung-hye Min ,  Sun-il Lee

IPC: H04N11/02 ,  H04N19/52 ,  H04N19/176 ,  H04N19/70 ,  H04N19/182 ,  H04N19/51

CPC classification number: H04N19/52 ,  H04N19/176 ,  H04N19/182 ,  H04N19/51 ,  H04N19/70

Abstract: A motion vector encoding apparatus includes: a predictor configured to obtain motion vector predictor candidates of a plurality of predetermined motion vector resolutions by using a spatial candidate block and a temporal candidate block of a current block, and to determine motion vector predictor of the current block, a motion vector of the current block, and a motion vector resolution of the current block by using the motion vector predictor candidates; and an encoder configured to encode information representing the motion vector predictor of the current block, a residual motion vector between the motion vector of the current block and the motion vector predictor of the current block, and information representing the motion vector resolution of the current block, wherein the plurality of predetermined motion vector resolutions include a resolution of a pixel unit that is greater than a resolution of one-pel unit.

公开(公告)号：US11523130B2

公开(公告)日：2022-12-06

申请号：US17218574

申请日：2021-03-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung-soo Jeong ,  Min-woo Park ,  Jin-Young Lee ,  Sun-il Lee

IPC: H04N19/52 ,  H04N19/176

Abstract: Provided is a video decoding method performed by a video decoding apparatus, the video decoding method including: determining prediction mode information of a current block and an index indicating a prediction candidate, from a bitstream; determining a prediction candidate list according to the prediction mode information; when the prediction mode information of the current block indicates a pre-set prediction mode, determining a motion vector indicated by the index indicating the prediction candidate from the prediction candidate list, and determining a prediction motion vector of the current block based on at least one of pieces of motion prediction information related to the motion vector; and determining a motion vector of the current block based on the prediction motion vector, wherein the pre-set prediction mode is a prediction mode different from a skip mode and a merge mode.

公开(公告)号：US11509899B2

公开(公告)日：2022-11-22

申请号：US17314475

申请日：2021-05-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Vadim Seregin ,  Jianle Chen ,  Sun-il Lee ,  Tammy Lee

IPC: H04N19/13 ,  H04N19/46 ,  H04N19/593 ,  H04N19/463 ,  H04N19/186 ,  H04N19/119 ,  H04N19/11 ,  H04N19/154

Abstract: Methods and apparatuses for encoding and decoding an intra prediction mode of a prediction unit of a chrominance component based on an intra prediction mode of a prediction unit of a luminance component are provided. When an intra prediction mode of a prediction unit of a luminance component is the same as an intra prediction mode in an intra prediction mode candidate group of a prediction unit of a chrominance component, reconstructing the intra prediction mode candidate group of the prediction unit of the chrominance component by excluding or replacing an intra prediction mode of the prediction unit of the chrominance component which is same as an intra prediction mode of the prediction unit of the luminance component from the intra prediction mode candidate group, and encoding the intra prediction mode of the prediction unit of the chrominance component by using the reconstructed intra prediction mode candidate group.

公开(公告)号：US11228782B2

公开(公告)日：2022-01-18

申请号：US16775974

申请日：2020-01-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung-soo Jeong ,  Min-woo Park ,  Jin-young Lee ,  Sun-il Lee

IPC: H04N19/52 ,  H04N19/176

Abstract: Provided is a video decoding method performed by a video decoding apparatus, the video decoding method including: determining prediction mode information of a current block and an index indicating a prediction candidate, from a bitstream; determining a prediction candidate list according to the prediction mode information; when the prediction mode information of the current block indicates a pre-set prediction mode, determining a motion vector indicated by the index indicating the prediction candidate from the prediction candidate list, and determining a prediction motion vector of the current block based on at least one of pieces of motion prediction information related to the motion vector; and determining a motion vector of the current block based on the prediction motion vector, wherein the pre-set prediction mode is a prediction mode different from a skip mode and a merge mode.

公开(公告)号：US10992951B2

公开(公告)日：2021-04-27

申请号：US16776053

申请日：2020-01-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung-soo Jeong ,  Min-woo Park ,  Jin-young Lee ,  Sun-il Lee

IPC: H04N19/52 ,  H04N19/176

Abstract: Provided is a video decoding method performed by a video decoding apparatus, the video decoding method including: determining prediction mode information of a current block and an index indicating a prediction candidate, from a bitstream; determining a prediction candidate list according to the prediction mode information; when the prediction mode information of the current block indicates a pre-set prediction mode, determining a motion vector indicated by the index indicating the prediction candidate from the prediction candidate list, and determining a prediction motion vector of the current block based on at least one of pieces of motion prediction information related to the motion vector; and determining a motion vector of the current block based on the prediction motion vector, wherein the pre-set prediction mode is a prediction mode different from a skip mode and a merge mode.

公开(公告)号：US10728547B2

公开(公告)日：2020-07-28

申请号：US15180649

申请日：2016-06-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sun-il Lee ,  Elena Alshina ,  Yin-ji Piao

IPC: H04N19/117 ,  H04N19/463 ,  H04N19/44 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184

Abstract: Provided is a video decoding method for signaling of sample adaptive offset (SAO) parameters, the video decoding method including obtaining, from a bitstream, position information of each of a plurality of bandgroups with respect to a current block comprised in a video; obtaining, from the bitstream, offsets with respect to bands comprised in each of the plurality of bandgroups; determining the plurality of bandgroups so as to compensate for a pixel sample value of the current block, based on the position information of each of the plurality of bandgroups; and compensating for a sample value of a reconstructed pixel comprised in the current block, by using the obtained offsets. In this regard, each of the plurality of determined bandgroups comprises at least one band.

公开(公告)号：US10560693B2

公开(公告)日：2020-02-11

申请号：US15778681

申请日：2016-11-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kwang-hyun Won ,  Chan-yul Kim ,  Sun-il Lee ,  Ki-ho Choi

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/513 ,  H04N19/44 ,  H04N19/103

Abstract: Provided are methods and apparatuses for encoding and decoding a coding unit of a picture outline. An image decoding method includes obtaining a prediction mode and prediction information of a current block included in a current image, from a bitstream; reconstructing the current block based on at least one of the prediction mode and the prediction information of the current block; when the prediction mode of the current block is a first prediction mode, obtaining a prediction candidate related to a second prediction mode by performing prediction according to the second prediction mode based on the reconstructed current block; and reconstructing an adjacent block reconstructed after the current block by using the prediction candidate related to the second prediction mode.

公开(公告)号：US10027991B2

公开(公告)日：2018-07-17

申请号：US15625640

申请日：2017-06-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Woong-Il Choi ,  Woo-jin Han ,  Tammy Lee ,  Sun-il Lee

IPC: H04N19/91 ,  H04N19/176 ,  H04N19/124 ,  H04N19/44 ,  H04N19/61 ,  H04N19/70 ,  H04N19/30

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.

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：US09635367B2

公开(公告)日：2017-04-25

申请号：US14299801

申请日：2014-06-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N7/12 ,  H04N19/137 ,  H04N19/56 ,  H04N19/105 ,  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.