公开(公告)号：US20220007023A1

公开(公告)日：2022-01-06

申请号：US17294288

申请日：2020-05-15

申请人： Hyundai Motor Company ,  KIA MOTORS 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 ,  H04N19/18 ,  H04N19/176

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：US20220279187A1

公开(公告)日：2022-09-01

申请号：US17633030

申请日：2020-08-06

申请人： Hyundai Motor Company ,  Kia Motors 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 ,  H04N19/186 ,  H04N19/176 ,  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：US20220014769A1

公开(公告)日：2022-01-13

申请号：US17294137

申请日：2020-05-15

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

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

IPC分类号： H04N19/44 ,  H04N19/119 ,  H04N19/96 ,  H04N19/117 ,  H04N19/82 ,  H04N19/105 ,  H04N19/176

摘要： For encoding and decoding images, an image encoding device divides each picture into sub-pictures that can be independently displayed, and signals layout information about the sub-pictures, and an image decoding device identifies each sub-block through the layout information and decodes the sub-pictures. A video decoding apparatus and method are configured to decode a bitstream containing an encoded sequence of pictures which are partitioned into a plurality of subpictures including a plurality of coding tree blocks.

公开(公告)号：US12101463B2

公开(公告)日：2024-09-24

申请号：US17440567

申请日：2020-03-20

申请人： Hyundai Motor Company ,  Kia Motors 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： H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

CPC分类号： H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

摘要： The present embodiment, for an intra prediction method used by an intra prediction device, provides the method comprising: decoding, from a bitstream, mode information indicating use of a prediction derivation mode for a prediction mode block; deriving an intra prediction mode of each pixel group from intra prediction modes of pre-reconstructed reference pixels at a plurality of positions near the prediction mode block for each pixel group including one or more pixels in the prediction mode block; and intra-predicting the pixels in each pixel group using the intra prediction mode of each pixel group.

公开(公告)号：US11930180B2

公开(公告)日：2024-03-12

申请号：US17633030

申请日：2020-08-06

申请人： Hyundai Motor Company ,  Kia Motors 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：US11973966B2

公开(公告)日：2024-04-30

申请号：US17438305

申请日：2020-03-12

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

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

IPC分类号： H04N19/46 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70 ,  H04N19/82

CPC分类号： H04N19/46 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70 ,  H04N19/82

摘要： A video decoding method and a video decoding apparatus are configured to decode video. To efficiently code residual blocks obtained from block-based motion compensation, a video encoding apparatus and the video decoding apparatus divide a relevant residual block of a current block into two subblocks in a horizontal or vertical direction and encode one residual subblock alone out of the two residual subblocks.

公开(公告)号：US11706429B2

公开(公告)日：2023-07-18

申请号：US17278453

申请日：2020-03-12

申请人： Hyundai Motor Company ,  Kia Motors 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：US11553209B2

公开(公告)日：2023-01-10

申请号：US17277936

申请日：2020-05-15

申请人： Hyundai Motor Company ,  Kia Motors 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

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：US20220150470A1

公开(公告)日：2022-05-12

申请号：US17440567

申请日：2020-03-20

申请人： Hyundai Motor Company ,  Kia Motors 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： H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

摘要： The present embodiment, for an intra prediction method used by an intra prediction device, provides the method comprising: decoding, from a bitstream, mode information indicating use of a prediction derivation mode for a prediction mode block; deriving an intra prediction mode of each pixel group from intra prediction modes of pre-reconstructed reference pixels at a plurality of positions near the prediction mode block for each pixel group including one or more pixels in the prediction mode block; and intra-predicting the pixels in each pixel group using the intra prediction mode of each pixel group.

公开(公告)号：US20210368191A1

公开(公告)日：2021-11-25

申请号：US17278453

申请日：2020-03-12

申请人： Hyundai Motor Company ,  Kia Motors 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 ,  H04N19/159 ,  H04N19/105 ,  H04N19/82 ,  H04N19/46 ,  H04N19/176

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.