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：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.

公开(公告)号：US20180367793A1

公开(公告)日：2018-12-20

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: H04N19/11 ,  H04N19/176

CPC classification number: H04N19/11 ,  H04N19/159 ,  H04N19/176

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：US20240364872A1

公开(公告)日：2024-10-31

申请号：US18766110

申请日：2024-07-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/105 ,  H04N19/119 ,  H04N19/129 ,  H04N19/137 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51 ,  H04N19/52

CPC classification number: H04N19/105 ,  H04N19/119 ,  H04N19/129 ,  H04N19/137 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51 ,  H04N19/52

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.

公开(公告)号：US20200329241A1

公开(公告)日：2020-10-15

申请号：US16092397

申请日：2016-10-10

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：US20200252614A1

公开(公告)日：2020-08-06

申请号：US16651809

申请日：2018-09-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

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

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, based on the position of the current sample in the current block, 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, the prediction block including the filtered prediction sample value of the current sample.

公开(公告)号：US20190260992A1

公开(公告)日：2019-08-22

申请号：US16340323

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: H04N19/119 ,  H04N19/136 ,  H04N19/186 ,  H04N19/176 ,  H04N19/96

Abstract: Provided are a method and device for encoding or decoding a luma block and a chroma block. An image decoding method and device according to an embodiment include an image decoding method including obtaining, from a bitstream, partitioning information for a luma block; partitioning a current luma block in at least one direction, thus partitioning the current luma block into at least two luma blocks, when the partitioning information indicates that the current luma block is to be partitioned to a next level, and obtaining, from the bitstream, merge information about a current chroma block corresponding to the current luma block; performing decoding on the current luma block when the partitioning information indicates that the current luma block is not to be partitioned; partitioning the current chroma block into at least two chroma blocks corresponding to the at least two luma blocks when the partitioning information indicates that the current luma block is to be partitioned to the next level; and performing decoding on the current chroma block when the partitioning information indicates that the current luma block is not to be partitioned or the merge information indicates that the partitioning of the current chroma block is to be discontinued.

公开(公告)号：US20190246106A1

公开(公告)日：2019-08-08

申请号：US16339270

申请日：2016-10-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

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

CPC classification number: H04N19/119 ,  H04N19/14 ,  H04N19/167 ,  H04N19/172 ,  H04N19/176

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：US20180343469A1

公开(公告)日：2018-11-29

申请号：US15777512

申请日：2016-11-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04N19/59 ,  H04N19/593 ,  H04N19/82

Abstract: Provided is a video decoding method including obtaining, from a bitstream, information about a prediction mode of a current block; when the prediction mode of the current block is an intra mode, obtaining information about an intra prediction mode of the current block; obtaining a predicted sample value of the current block by using at least one sample that is from among samples included in an adjacent reference region of a plurality of lines and is located, from the current block, in an intra prediction direction indicated by an intra prediction mode. The adjacent reference region of the plurality of lines may include a plurality of lines that are in a vertical direction and located at a left side of the current block, or a plurality of lines that are in a horizontal direction and located at an upper side of the current block.