公开(公告)号：US20230300332A1

公开(公告)日：2023-09-21

申请号：US18322826

申请日：2023-05-24

Applicant: SAMSUNG ELECTRONICS CO, LTD.

Inventor： Min-soo PARK ,  Min-woo PARK

IPC: H04N19/119 ,  H04N19/13 ,  H04N19/14

CPC classification number: H04N19/119 ,  H04N19/13 ,  H04N19/14

Abstract: Provided are image decoding/encoding methods and apparatuses for increasing coding efficiency and reducing complexity while using a flexible tree split. The image decoding method includes: obtaining, from a bitstream, a bin string corresponding to a split shape mode of a coding unit; determining a split rule of the coding unit; and splitting the coding unit into a plurality of coding units, based on at least one of the split rule and the bin string corresponding to the split shape mode, wherein the determining of the split rule includes: determining an allowable first range of a size of the coding unit according to a ratio of a width and a height of the coding unit; and determining an allowable second range of the size of the coding unit according to the split shape mode of the coding unit.

公开(公告)号：US20230164323A1

公开(公告)日：2023-05-25

申请号：US18151570

申请日：2023-01-09

Applicant: SAMSUNG ELECTRONICS CO, LTD.

Inventor： Na-rae CHOI ,  Bo-ra JIN ,  Min-woo PARK

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/189 ,  H04N19/635

CPC classification number: H04N19/132 ,  H04N19/105 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/189 ,  H04N19/635

Abstract: Provided is an image decoding method including: generating an intra prediction value of a current sample based on a position of the current sample in a current block and an intra prediction mode of the current block; determining a sample value of at least one filtering reference sample to be filtered and a first weight with respect to the filtering reference sample and a second weight with respect to the intra prediction value of the current sample; generating a filtered prediction sample value of the current sample based on the determined sample value of the filtering reference sample to be filtered, the intra prediction value of the current sample, the first weight with respect to the filtering reference sample, and the second weight with respect to the intra prediction value of the current sample; and generating a prediction block of the current block including the filtered prediction sample value.

公开(公告)号：US20220394252A1

公开(公告)日：2022-12-08

申请号：US17882236

申请日：2022-08-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo PARK ,  Bo-ra Jin ,  Chan-yul Kim ,  Jung-hye Min

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/167 ,  H04N19/14 ,  H04N19/172

Abstract: Provided are a method and apparatus for encoding or decoding a coding unit on an outline of a picture. An image decoding method and apparatus according to an embodiment determine whether a current coding unit extends across an outline of a picture, by comparing a location of the current coding unit in the picture to at least one of a width and a height of the picture, split the current coding unit in at least one direction into a plurality of coding units based on a shape of the current coding unit upon determining that the current coding unit extends across the outline of the picture, obtain block shape information and split type information of the current coding unit from a bitstream and split the current coding unit into a plurality of coding units based on the block shape information and the split type information upon determining that the current coding unit does not extend across the outline of the picture, and decode a coding unit that is no longer split among the plurality of coding units.

公开(公告)号：US20220210405A1

公开(公告)日：2022-06-30

申请号：US17696514

申请日：2022-03-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-ho CHOI ,  Min-woo PARK ,  Elena ALSHINA ,  Chan-yul KIM ,  In-kwon CHOI

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/122 ,  H04N19/13 ,  H04N19/129 ,  H04N19/44

Abstract: Provided is a method of decoding a video according to an embodiment, the method including determining at least one processing block for splitting the video; determining an order of determining at least one largest coding unit in the at least one processing block; determining at least one largest coding unit on the basis of the determined order; and decoding the determined at least one largest coding unit, wherein the order is one of a plurality of orders for determining a largest coding unit.

公开(公告)号：US20220086452A1

公开(公告)日：2022-03-17

申请号：US17522384

申请日：2021-11-09

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Jin-young LEE ,  Min-woo PARK ,  Anish TAMSE

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

Abstract: An image decoding method includes obtaining, from a bitstream, first information indicating a motion vector resolution of a current unit among plural motion vector resolutions including a first motion vector resolution and a second motion vector resolution, and obtaining, from the bitstream, second information indicating whether a merge mode is applied to the current unit or not when the first information indicates the first motion vector resolution. The current unit is decoded based on the merge mode when the second information indicates that the merge mode is applied to the current unit. When the first information indicates the second motion vector resolution, the second information is not obtained from the bitstream. A picture is split into one or more largest coding units, and a largest coding unit among the one or more largest coding units is split into one or more coding units including the current unit.

公开(公告)号：US20210266561A1

公开(公告)日：2021-08-26

申请号：US17255599

申请日：2018-06-26

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Seung-soo JEONG ,  Chan-yul KIM ,  Min-soo PARK ,  Min-woo PARK ,  Ki-ho CHOI ,  Na-rae CHOI ,  Woong-il CHOI ,  Anish TAMSE ,  Yin-ji PIAO

IPC: H04N19/139 ,  H04N19/176 ,  H04N19/513 ,  H04N19/115

Abstract: A method of decoding motion information includes determining a coding factor value of a differential motion vector of a current block, when adaptive encoding has been applied to the differential motion vector, determining a first result value generated by applying the adaptive encoding to the differential motion vector, based on information included in the bitstream, obtaining the differential motion vector by applying the determined coding factor value to the first result value according to a certain operation, and obtaining a motion vector of the current block, based on the obtained differential motion vector and a prediction motion vector of the current block.

公开(公告)号：US20200169747A1

公开(公告)日：2020-05-28

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：US20200169746A1

公开(公告)日：2020-05-28

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：US20200053363A1

公开(公告)日：2020-02-13

申请号：US16339574

申请日：2016-10-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hye MIN ,  Min-woo PARK ,  Bo-ra JIN ,  Chan-yul KIM

IPC: H04N19/176 ,  H04N19/119 ,  H04N19/44 ,  H04N19/463 ,  H04N19/122

Abstract: Provided is a method of decoding an image, the method including: determining at least one coding unit for splitting an image, based on block shape information of a current coding unit; determining at least one transformation unit, based on a shape of the current coding unit included in the at least one coding unit; and decoding the image by performing inverse transformation based on the at least one transformation unit, wherein the block shape information indicates whether the current coding unit is a square shape or a non-square shape. Also, provided is an encoding method corresponding to the decoding method. In addition, provided is an encoding apparatus or decoding apparatus capable of performing the encoding or decoding method.

公开(公告)号：US20190037217A1

公开(公告)日：2019-01-31

申请号：US16077540

申请日：2017-02-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bo-ra JIN ,  Chan-yul KIM ,  Min-woo PARK

IPC: H04N19/139 ,  H04N19/159 ,  H04N19/105 ,  H04N19/117 ,  H04N19/167 ,  H04N19/567 ,  H04N19/176

Abstract: Provided are a video encoding method and a video encoding apparatus capable of performing the video encoding method. The video encoding method according to an embodiment includes generating a first predicted block by performing intra prediction on a current block by using neighboring pixels of the current block which have been previously encoded and reconstructed; determining a reference block corresponding to the current block and included in a reconstructed pixel region encoded and reconstructed prior to the current block; generating a residual block, based on the reference block; generating a second predicted block by adding residual values of pixels included in the residual block and intra prediction values of pixels included in the first predicted block; determining the first predicted block or the second predicted block to be a predicted block of the current block; and generating a bitstream including residual data of the current block generated from the determined predicted block.