公开(公告)号：US20230336767A1

公开(公告)日：2023-10-19

申请号：US18336672

申请日：2023-06-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung-soo JEONG ,  Min-woo PARK

IPC: H04N19/513 ,  H04N19/139 ,  H04N19/176 ,  H04N19/184 ,  H04N19/13 ,  H04N19/70

CPC classification number: H04N19/513 ,  H04N19/13 ,  H04N19/139 ,  H04N19/176 ,  H04N19/184 ,  H04N19/70

Abstract: A method of decoding motion information according to an embodiment includes: obtaining information indicating a disparity distance for determining a prediction motion vector of a current block; scaling the disparity distance corresponding to the obtained information, based on a comparison result between a base pixel unit and a smallest pixel unit indicatable by a motion vector of the current block; determining a prediction motion vector candidate changed by the scaled disparity distance from a base motion vector of the current block from among one or more prediction motion vector candidates as the prediction motion vector of the current block; and determining the motion vector of the current block by using the prediction motion vector.

公开(公告)号：US20220210406A1

公开(公告)日：2022-06-30

申请号：US17696519

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：US20220070467A1

公开(公告)日：2022-03-03

申请号：US17522209

申请日：2021-11-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

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

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.

公开(公告)号：US20220060705A1

公开(公告)日：2022-02-24

申请号：US17521266

申请日：2021-11-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-soo PARK ,  Min-woo PARK

IPC: 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：US20210344912A1

公开(公告)日：2021-11-04

申请号：US17375582

申请日：2021-07-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo PARK ,  Min-soo PARK

IPC: H04N19/107 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176

Abstract: An image decoding method includes: splitting a first block included in an image on the basis of at least one of a split type and a split direction of the first block to determine at least one second block from the first block; determining one of a prediction mode of the at least one second block and whether to split the at least one second block on the basis of at least one of a size and a shape of the determined at least one second block; obtaining a prediction block of a block included in the at least one second block on the basis of one of the determined prediction mode and whether to split the at least one second block; and restoring the block included in the at least one second block on the basis of the prediction block of the block included in the at least one second block. Here, the split type represents one of binary-split, tri-split, and quad-split.

公开(公告)号：US20210329234A1

公开(公告)日：2021-10-21

申请号：US17328323

申请日：2021-05-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/119 ,  H04N19/176

Abstract: Provided is an image decoding method of decoding an image, the image decoding method including: obtaining at least one of block shape information and split shape information about a first coding unit included in the image, from a bitstream; determining at least one second coding unit included in the first coding unit based on at least one of the block shape information and the split shape information; and decoding the image based on the at least one second coding unit, wherein the block shape information indicates a shape of the first coding unit and the split shape information indicates whether the first coding unit is split into the at least one second coding unit. Also, provided is an image encoding method corresponding to the image decoding method. Also, provided is an image encoding apparatus and image decoding apparatus for respectively performing the image encoding method and image decoding method.

公开(公告)号：US20210314591A1

公开(公告)日：2021-10-07

申请号：US17348280

申请日：2021-06-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo PARK ,  Bo-ra Jin ,  In-kwon Choi

IPC: H04N19/44 ,  H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/172

Abstract: Provided is a method of decoding an image, the method including: determining at least one prediction unit included in a current frame that is one of at least one frame forming the image; determining a reference region to be referred to by a current prediction unit that is one of the at least one prediction unit; changing a sample value included in at least one of the current prediction unit and the reference region, based on an analyzing result of a sample value of the reference region; determining a sample value included in the current prediction unit, based on a result of changing the sample value; and decoding the image based on the determined sample value of the current prediction unit.

公开(公告)号：US20210211699A1

公开(公告)日：2021-07-08

申请号：US15998659

申请日：2017-02-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-woo PARK ,  Bo-ra JIN ,  In-kwon CHOI ,  Chan-yul KIM ,  Na-rae CHOI ,  Jung-hye MIN ,  Sun-il LEE

IPC: H04N19/44 ,  H04N19/119 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

Abstract: Provided are a method and apparatus for adaptively partitioning a block. An image decoding method according to an embodiment includes determining reference pixels used to partition a coding unit, from among pixels adjacent to the coding unit, determining a partition location indicating a location of a boundary for partitioning the coding unit, based on at least one of a location having a highest pixel gradient and a location of a detected edge from among the reference pixels, obtaining a plurality of prediction units from the coding unit by partitioning the coding unit in a predetermined direction from the partition location, and predicting the plurality of prediction units.

公开(公告)号：US20200336739A1

公开(公告)日：2020-10-22

申请号：US15998649

申请日：2017-02-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： In kwon CHOI ,  Min-woo PARK ,  Bo-ra JIN

IPC: H04N19/11 ,  H04N19/59 ,  H04N19/61 ,  H04N19/167 ,  H04N19/176 ,  H04N19/593 ,  H04N19/105

Abstract: Provided is a video decoding method including obtaining a bitstream including residual data about a residual block of a current block, determining a plurality of prediction directions with respect to the current block, determining a plurality of reference samples included in a neighboring region of the current block in a current image, by using the plurality of prediction directions that are determined, generating a prediction block of the current block by using the plurality of reference samples, obtaining a residual block of the current block based on the residual data about the residual block of the current block, and reconstructing the current block by using the prediction block of the current block and the residual block of the current block.

公开(公告)号：US20190246101A1

公开(公告)日：2019-08-08

申请号：US16340877

申请日：2016-10-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/105 ,  H04N19/119 ,  H04N19/137 ,  H04N19/176

CPC classification number: H04N19/105 ,  H04N19/119 ,  H04N19/129 ,  H04N19/137 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51

Abstract: Provided are a method and device for encoding or decoding an image by using a block map. In the method and device for decoding an image according to an embodiment set forth herein, a bitstream of an encoded image is received, one or more blocks in a picture are determined using split information obtained from the bitstream, a block map indicating whether or not a previous block among the one or more blocks has been decoded is determined, a neighboring region which is available to be referred to for a current block to be decoded in a certain scan order among the one or more blocks is determined, and the current block is decoded based on the neighboring region which is available to be referred to.