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：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：US11184620B2

公开(公告)日：2021-11-23

申请号：US16762415

申请日：2018-03-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-young Lee ,  Min-woo Park ,  Anish Tamse

IPC: H04N19/00 ,  H04N19/137 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176

Abstract: Provided is an image decoding method including determining at least one first processing mode for decoding of a current block, based on a motion vector resolution (MVR) of the current block, the at least one first processing mode being from among a plurality of processing modes included in at least one of a prediction process, a transform process, and a filtering process; and decoding the current block, according to the at least one first processing 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：US10820002B2

公开(公告)日：2020-10-27

申请号：US14965348

申请日：2015-12-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo Park ,  In-kwon Choi ,  Chan-yul Kim ,  Kwang-pyo Choi ,  Seung-soo Jeong

IPC: H04N19/463 ,  H04N19/40

Abstract: An image encoding apparatus includes an annexed data obtainer configured to obtain annexed data that is annexed to image data and that is to be transmitted along with the image data; an annexed image data obtainer configured to convert the obtained annexed data and obtain annexed image data having a same format as that of the image data; and an encoder configured to obtain transmission image data based on the annexed image data and the image data and encode the transmission image data according to a first codec.

公开(公告)号：US10742974B2

公开(公告)日：2020-08-11

申请号：US15781776

申请日：2016-12-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo Park ,  Bo-ra Jin ,  Na-rae Choi ,  In-kwon Choi

IPC: H04N19/176 ,  H04N19/11 ,  H04N19/44 ,  H04N19/159

Abstract: Provided are a video decoding method including determining at least one first block for partitioning a current frame which is one of at least one frame included in a video, determining a first prediction mode indicating an intra-prediction method to be performed on a current first block which is one of the at least one first block based on first intra-prediction mode information obtained from a bitstream when intra-prediction is performed on the current first block, determining a plurality of second blocks included in the current first block, determining second prediction modes indicating intra-prediction methods to be performed on the plurality of second blocks based on at least one of the first prediction mode and second intra-prediction mode information obtained from the bitstream with respect to each of the plurality of second blocks, and decoding the video by performing intra-prediction based on the first prediction mode and the second prediction mode; and a video decoding apparatus capable of performing the video decoding method. Provided are also a video encoding method performed in a way opposite or similar to the video decoding method; and a video encoding apparatus capable of performing the video encoding method.

公开(公告)号：US10742973B2

公开(公告)日：2020-08-11

申请号：US15572608

申请日：2016-05-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo Park ,  In-kwon Choi ,  Jin-young Lee ,  Chan-yul Kim ,  Yin-ji Piao

IPC: H04N19/11 ,  H04N19/176 ,  H04N19/119 ,  H04N19/105 ,  H04N19/14 ,  H04N19/17 ,  H04N19/122 ,  H04N19/132 ,  H04N19/184 ,  H04N19/593 ,  H04N19/463

Abstract: Provided is a video decoding method including: obtaining mode information of a contour for determining at least one segment from a current block; determining whether first coordinates and second coordinates of the contour are derivable from a neighboring block of the current block, based on the mode information of the contour; when the first and second coordinates of the contour are derivable from the neighboring block of the current block, determining the at least one segment from the current block based on the first and second coordinates of the contour derived from the neighboring block of the current block; and performing prediction with respect to the determined at least one segment.

公开(公告)号：US10728565B2

公开(公告)日：2020-07-28

申请号：US14782504

申请日：2014-04-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-young Lee ,  Min-woo Park ,  Ho-cheon Wey ,  Jae-won Yoon ,  Yong-jin Cho ,  Byeong-doo Choi

IPC: H04N19/44 ,  H04N19/30 ,  H04N19/159 ,  H04N19/12 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/51

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 reconstructing a first layer image based on encoding information of the first layer image that is obtained from a bitstream, splitting a largest coding unit of a second layer image into coding units based on split information of the second layer image that is obtained from the bitstream, splitting the coding units into prediction units for prediction encoding, determining whether to use a coding tool for decoding a current prediction unit based on at least one among a prediction mode of the current prediction unit among the prediction units, size information of the current prediction unit, and color depth information of the current prediction unit, and decoding the current prediction unit, using the coding tool, in response to the determining to use the coding tool.

公开(公告)号：US10595050B2

公开(公告)日：2020-03-17

申请号：US15777029

申请日：2016-11-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bo-ra Jin ,  Min-woo Park

IPC: H04N19/85 ,  H04N19/176 ,  H04N19/117 ,  H04N19/46 ,  H04N19/107 ,  H04N19/124 ,  H04N19/91 ,  H04N19/44 ,  H04N19/80 ,  H04N19/14 ,  H04N19/82

Abstract: Provided is an image encoding or decoding method and apparatus for post-processing an intra- or inter-predicted block based on pixel gradients. In the image decoding method and apparatus according to an embodiment, prediction mode information of a current block to be decoded and filtering information indicating whether to filter a predicted block are obtained from a bitstream, a first predicted block of the current block is generated based on the prediction mode information, a second predicted block is generated by changing a pixel value of a current pixel in the first predicted block based on gradient values between the current pixel and adjacent pixels of the current pixel, when the filtering information indicates to filter the first predicted block, a residual corresponding to a difference value between the current block and the second predicted block is reconstructed by extracting the residual from the bitstream, and the current block is decoded by adding the residual to the second predicted block.

公开(公告)号：US10554966B2

公开(公告)日：2020-02-04

申请号：US15517794

申请日：2015-09-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-young Lee ,  Min-woo Park

IPC: H04N19/103 ,  H04N19/159 ,  H04N19/40 ,  H04N19/105 ,  H04N19/11 ,  H04N19/114 ,  H04N19/184

Abstract: Provided is a method of decoding a multi-view image, the method including obtaining, from a bitstream, an intra skip flag indicating whether a current block included in a depth image of the multi-view image is to be reconstructed based on an intra skip mode; obtaining, from the bitstream, intra skip prediction mode information indicating an intra prediction mode to be used for the current block, from among a plurality of intra prediction modes, when the intra skip flag indicates that the current block is to be reconstructed based on the intra skip mode; determining predicted values of samples included in the current block according to an intra prediction method indicated by the intra skip prediction mode information; and reconstructing the current block by determining reconstructed values of the samples, based on the predicted values of the samples.