公开(公告)号：US12114008B2

公开(公告)日：2024-10-08

申请号：US17765391

申请日：2020-09-29

申请人： HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION

发明人： Dong Gyu Sim ,  Jong Seok Lee ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N7/12 ,  H04N19/117 ,  H04N19/139 ,  H04N19/176 ,  H04N19/196 ,  H04N19/53 ,  H04N19/70

CPC分类号： H04N19/53 ,  H04N19/117 ,  H04N19/139 ,  H04N19/176 ,  H04N19/196 ,  H04N19/70

摘要： A video decoding apparatus is provided for decoding a sequence of pictures, some of which have different resolutions. The apparatus decodes, from a high-level syntax structure of the sequence, a first syntax element for specifying a reference size of pictures referring to the high-level syntax structure and a second syntax element for specifying a picture size scaled from the reference size of the picture referring to the high-level syntax structure. The apparatus predicts a current block, by modifying a sample position in a reference picture indicated by a motion vector of the current block based on the first and second syntax elements.

公开(公告)号：US20240333979A1

公开(公告)日：2024-10-03

申请号：US18737419

申请日：2024-06-07

申请人： HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION

发明人： Sea Nae Park ,  Joo Hyung Byeon ,  Dong Gyu Sim ,  Jin Heo ,  Seung Wook Park

IPC分类号： H04N19/82 ,  H04N19/117 ,  H04N19/124 ,  H04N19/167 ,  H04N19/176 ,  H04N19/86

CPC分类号： H04N19/82 ,  H04N19/117 ,  H04N19/124 ,  H04N19/167 ,  H04N19/176 ,  H04N19/86

摘要： A method and an apparatus are disclosed for in-loop filtering in mapping-based video coding. A video coding method and an apparatus compensate for variations in signal characteristics between blocks or within a block by using in-loop filtering when original signals or residual signals are mapped in a particular way and then video encoding or video decoding is performed.

公开(公告)号：US12003786B2

公开(公告)日：2024-06-04

申请号：US17428403

申请日：2020-08-06

申请人： Hyundai Motor Company ,  Kia Corporation ,  Kwangwoon University Industry-Academic Collaboration Foundation

发明人： Dong Gyu Sim ,  Sea Nae Park ,  Jong Seok Lee ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/91 ,  H04N19/103 ,  H04N19/13 ,  H04N19/186 ,  H04N19/70

CPC分类号： H04N19/91 ,  H04N19/103 ,  H04N19/13 ,  H04N19/186 ,  H04N19/70

摘要： A method is executed to efficiently operate a bin buffer to limit a bin-to-bit ratio in entropy encoding and decoding related to bitstream generation and parsing. In addition, a method of configuring a list includes various entropy encoding/decoding methods and adaptively uses the entropy encoding/decoding methods for each basic unit of entropy encoding/decoding.

公开(公告)号：US20240179326A1

公开(公告)日：2024-05-30

申请号：US18431206

申请日：2024-02-02

申请人： HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION

发明人： Dong Gyu Sim ,  Min Hun Lee ,  Joo Hyung Byeon ,  Seung Wook Park ,  Jin Heo

IPC分类号： H04N19/159 ,  H04N19/119

CPC分类号： H04N19/159 ,  H04N19/119

摘要： A method and an apparatus are disclosed for video coding using a nonrectangular block splitting structure prediction and transform accordingly. The video coding method and the apparatus additionally apply a nonrectangular block splitting structure, in addition to an existing splitting structure, to a current block. The video coding method and the apparatus generate reference samples according to the applied splitting structure and effectively perform prediction and transform on split blocks.

公开(公告)号：US11962776B2

公开(公告)日：2024-04-16

申请号：US17988553

申请日：2022-11-16

申请人： Hyundai Motor Company ,  Kia Corporation ,  Kwangwoon University Industry-Academic Collaboration Foundation

发明人： Dong Gyu Sim ,  Sea Nae Park ,  Jong Seok Lee ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/124 ,  H04N19/105 ,  H04N19/176 ,  H04N19/18

CPC分类号： H04N19/124 ,  H04N19/105 ,  H04N19/176 ,  H04N19/18

摘要： An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.

公开(公告)号：US20240089456A1

公开(公告)日：2024-03-14

申请号：US18509624

申请日：2023-11-15

申请人： Hyundai Motor Company ,  Kia Corporation ,  Kwangwoon University Industry-Academic Collaboration Foundation

发明人： Dong Gyu Sim ,  Sea Nae Park ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

CPC分类号： H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

摘要： A method and for reconstructing chroma blocks and a video decoding apparatus are disclosed. In accordance with one aspect of the present disclosure, provided is a method for reconstructing a chroma block of a target block to be reconstructed. The method includes decoding correlation information between first residual samples and second residual samples, the first residual sample, and prediction information of the chroma block from a bitstream, wherein the first residual samples are residual samples of a first chroma component and the second residual samples are residual samples of a second chroma component. The method further includes generating predicted samples of the first chroma component and predicted samples of the second chroma information on the basis of the prediction information, and deriving the second residual samples by applying the correlation information to the first residual samples. The method further includes reconstructing a chroma block of the first chroma component by adding the first residual samples and the predicted samples of the first chroma component and reconstructing a chroma block of the second chroma component by adding the second residual samples and predicted samples of the second chroma component.

公开(公告)号：US20240089453A1

公开(公告)日：2024-03-14

申请号：US18509557

申请日：2023-11-15

申请人： Hyundai Motor Company ,  Kia Corporation ,  Kwangwoon University Industry-Academic Collaboration Foundation

发明人： Dong Gyu Sim ,  Sea Nae Park ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

CPC分类号： H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

摘要： A method and for reconstructing chroma blocks and a video decoding apparatus are disclosed. In accordance with one aspect of the present disclosure, provided is a method for reconstructing a chroma block of a target block to be reconstructed. The method includes decoding correlation information between first residual samples and second residual samples, the first residual sample, and prediction information of the chroma block from a bitstream, wherein the first residual samples are residual samples of a first chroma component and the second residual samples are residual samples of a second chroma component. The method further includes generating predicted samples of the first chroma component and predicted samples of the second chroma information on the basis of the prediction information, and deriving the second residual samples by applying the correlation information to the first residual samples. The method further includes reconstructing a chroma block of the first chroma component by adding the first residual samples and the predicted samples of the first chroma component and reconstructing a chroma block of the second chroma component by adding the second residual samples and predicted samples of the second chroma component.

公开(公告)号：US11910023B2

公开(公告)日：2024-02-20

申请号：US18078986

申请日：2022-12-11

申请人： Hyundai Motor Company ,  Kia Corporation ,  Kwangwoon University Industry-Academic Collaboration Foundation

发明人： Dong Gyu Sim ,  Sea Nae Park ,  Joo Hyung Byeon ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/70 ,  H04N19/176 ,  H04N19/132 ,  H04N19/169 ,  H04N19/46

CPC分类号： H04N19/70 ,  H04N19/132 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/46

摘要： A method and an apparatus for parallel encoding and decoding of moving picture data are provided. The method includes decoding, from a bitstream, a syntax element indicating that a picture can be decoded using wavefront parallel processing and decoding encoded data of the picture. The step of decoding encoded data of the picture includes for a first coding block of a current CTU row encoded in a palette mode, predicting a palette table for the first coding block by using palette data from a first CTU of a previous CTU row and decoding the first coding block in the palette mode using the palette table predicted for the first coding block.

公开(公告)号：US20240007656A1

公开(公告)日：2024-01-04

申请号：US18367871

申请日：2023-09-13

申请人： HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION

发明人： Dong Gyu Sim ,  Jun Taek Park ,  Han Sol Choi ,  Seung Wook Park

IPC分类号： H04N19/20 ,  H04N19/423 ,  H04N19/17

CPC分类号： H04N19/20 ,  H04N19/423 ,  H04N19/17

摘要： A method and an apparatus for video coding using segmentation are disclosed. The video coding method and the apparatus segment a current picture to generate objects. The method and apparatus also manage information related to a memory, a filter, and a quantization parameter for each of the objects to enhance encoding efficiency in encoding or decoding of the objects existing in the current picture.

公开(公告)号：US20230113442A1

公开(公告)日：2023-04-13

申请号：US18078986

申请日：2022-12-11

申请人： Hyundai Motor Company ,  Kia Corporation ,  Kwangwoon University industry-Academic Collaboration Foundation

发明人： Dong Gyu Sim ,  Sea Nae Park ,  Joo Hyung Byeon ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/70 ,  H04N19/132 ,  H04N19/176 ,  H04N19/169 ,  H04N19/46

摘要： A method and an apparatus for parallel encoding and decoding of moving picture data are provided. The method includes decoding, from a bitstream, a syntax element indicating that a picture can be decoded using wavefront parallel processing and decoding encoded data of the picture. The step of decoding encoded data of the picture includes for a first coding block of a current CTU row encoded in a palette mode, predicting a palette table for the first coding block by using palette data from a first CTU of a previous CTU row and decoding the first coding block in the palette mode using the palette table predicted for the first coding block.