公开(公告)号：US20230090210A1

公开(公告)日：2023-03-23

申请号：US17988599

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

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：US11570439B2

公开(公告)日：2023-01-31

申请号：US17294288

申请日：2020-05-15

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

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：US20240333938A1

公开(公告)日：2024-10-03

申请号：US18737241

申请日：2024-06-07

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

发明人： Han Sol Choi ,  Myung Oh Hong ,  Dong Gyu Sim ,  Jin Heo ,  Seung Wook Park

IPC分类号： H04N19/137 ,  H04N19/105 ,  H04N19/176

CPC分类号： H04N19/137 ,  H04N19/105 ,  H04N19/176

摘要： A method and an apparatus are disclosed for video coding using a candidate list of motion vector predictors. The video coding method and the apparatus compose a candidate list that further includes object corresponding position candidates and large motion candidates. The video coding method and the apparatus reconstruct a motion vector of the current block based on the candidate list.

公开(公告)号：US20240323356A1

公开(公告)日：2024-09-26

申请号：US18734540

申请日：2024-06-05

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

发明人： Han Sol Choi ,  Min Hun Lee ,  Dong Gyu Sim ,  Jin Heo ,  Seung Wook Park

IPC分类号： H04N19/105 ,  H04N19/159 ,  H04N19/176

CPC分类号： H04N19/105 ,  H04N19/159 ,  H04N19/176

摘要： A method and apparatus for video coding utilize intra prediction based on reference sample line derivation. The video coding method and the apparatus derive reference sample lines of the current block by using various derivation schemes. The video coding method and the apparatus perform intra prediction of the current block by using the derived reference sample lines.

公开(公告)号：US20240163444A1

公开(公告)日：2024-05-16

申请号：US18413864

申请日：2024-01-16

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

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

IPC分类号： H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

CPC分类号： H04N19/132 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

摘要： A method and an apparatus are configured for intra prediction coding of video data. An apparatus for decoding video data includes: a decoding unit which obtains, from a bitstream, information on a luma prediction mode and information on a chroma prediction mode of a current coding block; and an intra prediction unit which generates luma prediction samples and chroma prediction samples of the current coding block. The intra prediction unit derives a luma intra prediction type and a luma intra prediction mode of the current coding block on the basis of the information on the luma prediction mode, and determines a chroma intra prediction mode of the current coding block on the basis of the luma intra prediction type and the luma intra prediction mode of the current coding block, and the information on the chroma prediction mode.

公开(公告)号：US20240089455A1

公开(公告)日：2024-03-14

申请号：US18509596

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. [Representative drawing: FIG. 7]

公开(公告)号：US20240007623A1

公开(公告)日：2024-01-04

申请号：US18038379

申请日：2021-11-24

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

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

IPC分类号： H04N19/119 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

CPC分类号： H04N19/119 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

摘要： A block splitting structure is disclosed for efficient prediction and transform, and a method and an apparatus are disclosed for video encoding and decoding using the block Splitting structure. In particular, the method and apparatus are capable of splitting a video data block into two regions or blocks including an L-shaped block and a rectangular block and thus efficiently perform prediction on each block.

公开(公告)号：US20230308671A1

公开(公告)日：2023-09-28

申请号：US18203903

申请日：2023-05-31

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

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

IPC分类号： H04N19/44 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/82

CPC分类号： H04N19/44 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/82

摘要： A method is provided for decoding a sequence of pictures using a gradual refresh technique. In particular, all areas in one picture are gradually encoded or decoded over a plurality of pictures associated with the picture.

公开(公告)号：US20230291932A1

公开(公告)日：2023-09-14

申请号：US18198114

申请日：2023-05-16

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

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

IPC分类号： H04N19/61 ,  H04N19/11 ,  H04N19/176 ,  H04N19/105 ,  H04N19/132 ,  H04N19/169 ,  H04N19/70 ,  H04N19/12 ,  H04N19/159 ,  H04N19/117 ,  H04N19/80

CPC分类号： H04N19/61 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/12 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/70 ,  H04N19/80

摘要： The present disclosure is related to an intra prediction method and an apparatus using block copy based on geometric transform. The intra prediction method and apparatus derive a reference block vector at each vertex of a current block and perform a geometric transform on the reference block vectors to generate reference blocks of various shapes that are not constrained to rectangular shapes. The intra prediction method and apparatus calculate a sub-block-vector for each pixel or group of pixels of the current block using the reference block vectors.

公开(公告)号：US20230113288A1

公开(公告)日：2023-04-13

申请号：US18078981

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.