公开(公告)号：US20220377366A1

公开(公告)日：2022-11-24

申请号：US17868953

申请日：2022-07-20

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

发明人： Je Won Kang ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/52 ,  H04N19/132 ,  H04N19/176 ,  H04N19/70

摘要： A video decoding apparatus is provided for decoding pictures using inter-prediction. The video decoding apparatus includes a predictor that generates affine prediction samples for respective subblocks in a target block in a current picture to be decoded by performing affine motion prediction on a subblock-by-subblock basis using control point motion vectors which respectively correspond to corners of the target block. The predictor also modifies sample values of the affine prediction samples by executing a first coding tool, the first coding tool compensating for motion according to sample positions in each of the subblocks using the control point motion vectors.

公开(公告)号：US20220360816A1

公开(公告)日：2022-11-10

申请号：US17868893

申请日：2022-07-20

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

发明人： Je Won Kang ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/52 ,  H04N19/132 ,  H04N19/176 ,  H04N19/70

摘要： A video decoding apparatus is provided for decoding pictures using inter-prediction. The video decoding apparatus includes a predictor that generates affine prediction samples for respective subblocks in a target block in a current picture to be decoded by performing affine motion prediction on a subblock-by-subblock basis using control point motion vectors which respectively correspond to corners of the target block. The predictor also modifies sample values of the affine prediction samples by executing a first coding tool, the first coding tool compensating for motion according to sample positions in each of the subblocks using the control point motion vectors.

公开(公告)号：US20220132156A1

公开(公告)日：2022-04-28

申请号：US17438596

申请日：2020-03-13

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

发明人： Je Won Kang ,  Sang Hyo Park ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/46 ,  H04N19/117 ,  H04N19/82 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176

摘要： A video decoding method is configured to reconstruct a current block that is encoded using an intra prediction. The method includes decoding, from a bitstream, direction information indicating a direction of differential coding applied to a residual block of the current block, generating the residual block from residual signals by reconstructing and using the information on the residual signals from the bitstream and using the direction information, inversely quantizing the modified residual block, generating a prediction block for the current block through intra prediction, and reconstructing the current block by adding the prediction block and the inverse quantized residual block.

公开(公告)号：US20210409693A1

公开(公告)日：2021-12-30

申请号：US17473247

申请日：2021-09-13

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

发明人： Je Won Kang ,  Sang Hyo Park ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/107 ,  H04N19/176 ,  H04N19/184 ,  H04N19/513 ,  H04N19/70

摘要： Image decoding of decoding a sequence of coded pictures on a block-by-block basis is provided. The image decoding incudes decoding a first high-level syntax element from a bitstream to determine, at a sequence level, whether affine motion prediction is allowed. A second high-level syntax element is extracted for each of at least one coding tool from the bitstream depending on the first high-level syntax element. At a picture level, the method determines whether each of the at least one coding tool is allowed. The coding tool includes sample-by-sample adjustment of affine motion prediction samples.

公开(公告)号：US11438623B2

公开(公告)日：2022-09-06

申请号：US17270243

申请日：2020-07-08

申请人： Hyundai Motor Company ,  Kia Motors Corporation ,  Ewha University—Industry Collaboration Foundation

发明人： Je Won Kang ,  Sang Hyo Park ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/105 ,  H04N19/132 ,  H04N19/176 ,  H04N19/70 ,  H04N19/513 ,  H04N19/139 ,  H04N19/577

摘要： A coding tool is provided to improve the compression performance of inter prediction and is used at the encoder/decoder side to adjust the correction of a motion vector based on a high level syntax. In addition, a method is provided for simply performing an integer sample search step of searching for an integer offset and a fractional sample refinement step of searching for a sub-pixel offset in relation to motion vector refinement among coding tools.

公开(公告)号：US11432002B2

公开(公告)日：2022-08-30

申请号：US17263597

申请日：2020-07-08

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

发明人： Je Won Kang ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/52 ,  H04N19/132 ,  H04N19/176 ,  H04N19/70

摘要： A video decoding apparatus is provided for decoding pictures using inter-prediction. The video decoding apparatus includes a predictor that generates affine prediction samples for respective subblocks in a target block in a current picture to be decoded by performing affine motion prediction on a subblock-by-subblock basis using control point motion vectors which respectively correspond to corners of the target block. The predictor also modifies sample values of the affine prediction samples by executing a first coding tool, the first coding tool compensating for motion according to sample positions in each of the subblocks using the control point motion vectors.

公开(公告)号：US20220124365A1

公开(公告)日：2022-04-21

申请号：US17270243

申请日：2020-07-08

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

发明人： Je Won Kang ,  Sang Hyo Park ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/513 ,  H04N19/176 ,  H04N19/70 ,  H04N19/577 ,  H04N19/105 ,  H04N19/132 ,  H04N19/139

摘要： A coding tool is provided to improve the compression performance of inter prediction and is used at the encoder/decoder side to adjust the correction of a motion vector based on a high level syntax. In addition, a method is provided for simply performing an integer sample search step of searching for an integer offset and a fractional sample refinement step of searching for a sub-pixel offset in relation to motion vector refinement among coding tools.

公开(公告)号：US11765382B2

公开(公告)日：2023-09-19

申请号：US17875104

申请日：2022-07-27

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

发明人： Je Won Kang ,  Sang Hyo Park ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/105 ,  H04N19/132 ,  H04N19/176 ,  H04N19/70 ,  H04N19/513 ,  H04N19/139 ,  H04N19/577

CPC分类号： H04N19/521 ,  H04N19/105 ,  H04N19/132 ,  H04N19/139 ,  H04N19/176 ,  H04N19/577 ,  H04N19/70

摘要： A coding tool is provided to improve the compression performance of inter prediction and is used at the encoder/decoder side to adjust the correction of a motion vector based on a high level syntax. In addition, a method is provided for simply performing an integer sample search step of searching for an integer offset and a fractional sample refinement step of searching for a sub-pixel offset in relation to motion vector refinement among coding tools.

公开(公告)号：US11683483B2

公开(公告)日：2023-06-20

申请号：US17473365

申请日：2021-09-13

申请人： Hyundai Motor Company ,  Kia Motors Corporation ,  Ewha University—Industry Collaboration Foundation

发明人： Je Won Kang ,  Sang Hyo Park ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/107 ,  H04N19/176 ,  H04N19/184 ,  H04N19/513 ,  H04N19/70

CPC分类号： H04N19/107 ,  H04N19/176 ,  H04N19/184 ,  H04N19/513 ,  H04N19/70

摘要： Image decoding of decoding a sequence of coded pictures on a block-by-block basis is provided. The image decoding incudes decoding a first high-level syntax element from a bitstream to determine, at a sequence level, whether affine motion prediction is allowed. A second high-level syntax element is extracted for each of at least one coding tool from the bitstream depending on the first high-level syntax element. At a picture level, the method determines whether each of the at least one coding tool is allowed. The coding tool includes sample-by-sample adjustment of affine motion prediction samples.

公开(公告)号：US20220368940A1

公开(公告)日：2022-11-17

申请号：US17875159

申请日：2022-07-27

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

发明人： Je Won Kang ,  Sang Hyo Park ,  Seung Wook Park ,  Wha Pyeong Lim

IPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/132 ,  H04N19/139 ,  H04N19/176 ,  H04N19/577 ,  H04N19/70

摘要： A coding tool is provided to improve the compression performance of inter prediction and is used at the encoder/decoder side to adjust the correction of a motion vector based on a high level syntax. In addition, a method is provided for simply performing an integer sample search step of searching for an integer offset and a fractional sample refinement step of searching for a sub-pixel offset in relation to motion vector refinement among coding tools.