公开(公告)号：US20240364854A1

公开(公告)日：2024-10-31

申请号：US18771216

申请日：2024-07-12

申请人： B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.

发明人： Ki Baek KIM

IPC分类号： H04N13/161 ,  G06T3/40 ,  H04N19/103 ,  H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/167 ,  H04N19/172 ,  H04N19/176 ,  H04N19/597 ,  H04N19/625 ,  H04N19/70 ,  H04N23/698

CPC分类号： H04N13/161 ,  G06T3/40 ,  H04N19/103 ,  H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/167 ,  H04N19/172 ,  H04N19/176 ,  H04N19/597 ,  H04N19/625 ,  H04N19/70 ,  H04N23/698

摘要： Disclosed are methods and apparatuses for decoding an image. A method includes receiving a bitstream obtained by encoding the image; dividing a first coding block into a plurality of second coding blocks; generating a prediction block of a second coding block based on syntax information obtained from the bitstream; and reconstructing the second coding block based on the prediction block and a residual block of the second coding block, the residual block being obtained by performing a dequantization and an inverse-transform on quantized transform coefficients from the bitstream. The first coding block has a recursive division structure. The first coding block is divided based on at least one of a quad tree division, a binary tree division or a triple tree division.

公开(公告)号：US20240334066A1

公开(公告)日：2024-10-03

申请号：US18733860

申请日：2024-06-05

申请人： B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.

发明人： Ki Baek KIM

IPC分类号： H04N23/698 ,  G06T3/40 ,  H04N19/103 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/176 ,  H04N19/51 ,  H04N19/625

CPC分类号： H04N23/698 ,  G06T3/40 ,  H04N19/103 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/176 ,  H04N19/51 ,  H04N19/625

摘要： A method of decoding an image, includes obtaining at least one offset for a picture, deriving a variable for scaling for the picture based on the at least one offset, and performing inter prediction based on the variable for scaling for the picture. The at least one offset is defined with a direction of scaling.

公开(公告)号：US20240334065A1

公开(公告)日：2024-10-03

申请号：US18733855

申请日：2024-06-05

申请人： B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.

发明人： Ki Baek KIM

IPC分类号： H04N23/698 ,  G06T3/40 ,  H04N19/103 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/176 ,  H04N19/51 ,  H04N19/625

CPC分类号： H04N23/698 ,  G06T3/40 ,  H04N19/103 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/176 ,  H04N19/51 ,  H04N19/625

摘要： A method of decoding an image, includes obtaining at least one offset for a picture, deriving a variable for scaling for the picture based on the at least one offset, and performing inter prediction based on the variable for scaling for the picture. The at least one offset is defined with a direction of scaling.

公开(公告)号：US20240333966A1

公开(公告)日：2024-10-03

申请号：US18738814

申请日：2024-06-10

申请人： SONY CORPORATION

发明人： Ohji NAKAGAMI

IPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/134 ,  H04N19/176 ,  H04N19/58 ,  H04N19/593 ,  H04N19/70

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/134 ,  H04N19/176 ,  H04N19/58 ,  H04N19/593 ,  H04N19/70

摘要： The present disclosure relates to an image processing apparatus and an image processing method that are capable of improving coding efficiency at the time when a prediction using a correlation within a screen is performed. A predicted vector generation section sets, at a time of encoding of a current motion vector of a current block for a prediction using a correlation within a screen, a candidate block to not available and generates a predicted vector of the current motion vector by using a reference motion vector, the reference motion vector being referred to when the predicted vector of the current motion vector is generated. A difference vector generation section generates a difference vector between the current motion vector and the predicted vector generated by the predicted vector generation section. The present disclosure can be applied to, for example, an encoding apparatus.

公开(公告)号：US20240314442A1

公开(公告)日：2024-09-19

申请号：US18672272

申请日：2024-05-23

申请人： B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.

发明人： Ki Baek KIM

IPC分类号： H04N23/698 ,  G06T3/40 ,  H04N19/103 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51 ,  H04N19/625

CPC分类号： H04N23/698 ,  G06T3/40 ,  H04N19/103 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51 ,  H04N19/625 ,  H04N19/45

摘要： Disclosed are methods and apparatuses for image data encoding/decoding. A method for decoding a 360-degree image includes the steps of: receiving a bitstream obtained by encoding a 360-degree image; generating a prediction image by making reference to syntax information obtained from the received bitstream; adding the generated prediction image to a residual image obtained by dequantizing and inverse-transforming the bitstream, so as to obtain a decoded image; and reconstructing the decoded image into a 360-degree image according to a projection format. Therefore, the performance of image data compression can be improved.

公开(公告)号：US20240314441A1

公开(公告)日：2024-09-19

申请号：US18672265

申请日：2024-05-23

申请人： B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.

发明人： Ki Baek KIM

IPC分类号： H04N23/698 ,  G06T3/40 ,  H04N19/103 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51 ,  H04N19/625

CPC分类号： H04N23/698 ,  G06T3/40 ,  H04N19/103 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51 ,  H04N19/625 ,  H04N19/45

摘要： Disclosed are methods and apparatuses for image data encoding/decoding. A method for decoding a 360-degree image includes the steps of: receiving a bitstream obtained by encoding a 360-degree image; generating a prediction image by making reference to syntax information obtained from the received bitstream; adding the generated prediction image to a residual image obtained by dequantizing and inverse-transforming the bitstream, so as to obtain a decoded image; and reconstructing the decoded image into a 360-degree image according to a projection format. Therefore, the performance of image data compression can be improved.

公开(公告)号：US20240305766A1

公开(公告)日：2024-09-12

申请号：US18664787

申请日：2024-05-15

申请人： B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.

发明人： Ki Baek KIM

IPC分类号： H04N13/161 ,  G06T3/40 ,  H04N19/103 ,  H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/167 ,  H04N19/172 ,  H04N19/176 ,  H04N19/597 ,  H04N19/625 ,  H04N19/70 ,  H04N23/698

CPC分类号： H04N13/161 ,  G06T3/40 ,  H04N19/103 ,  H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/167 ,  H04N19/172 ,  H04N19/176 ,  H04N19/597 ,  H04N19/625 ,  H04N19/70 ,  H04N23/698

摘要： A method for decoding a 360-degree image includes: receiving a bitstream obtained by encoding a 360-degree image; generating a prediction image by making reference to syntax information obtained from the received bitstream; combining the generated prediction image with a residual image obtained by dequantizing and inverse-transforming the bitstream, so as to obtain a decoded image; and reconstructing the decoded image into a 360-degree image according to a projection format. Here, generating the prediction image includes: checking, from the syntax information, prediction mode accuracy for a current block to be decoded; determining whether the checked prediction mode accuracy corresponds to most probable mode (MPM) information obtained from the syntax information; and when the checked prediction mode accuracy does not correspond to the MPM information, reconfiguring the MPM information according to the prediction mode accuracy for the current block.

公开(公告)号：US20240283941A1

公开(公告)日：2024-08-22

申请号：US18625935

申请日：2024-04-03

申请人： Sun Patent Trust

发明人： Toshiyasu SUGIO ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Kyoko TANIKAWA ,  Hisao SASAI ,  Toru MATSUNOBU

IPC分类号： H04N19/139 ,  H04N19/102 ,  H04N19/105 ,  H04N19/13 ,  H04N19/134 ,  H04N19/176 ,  H04N19/184 ,  H04N19/196 ,  H04N19/51 ,  H04N19/52 ,  H04N19/577 ,  H04N19/70

CPC分类号： H04N19/139 ,  H04N19/102 ,  H04N19/105 ,  H04N19/13 ,  H04N19/134 ,  H04N19/176 ,  H04N19/51 ,  H04N19/52 ,  H04N19/577 ,  H04N19/70 ,  H04N19/184 ,  H04N19/197

摘要： A method for transmitting a bitstream via a network is provided. The bitstream being generated by: deriving a first candidate having a first motion vector that has been used to code a first block; deriving a second candidate having a second motion vector and a first reference picture index value that identifies a first reference picture corresponding to the second motion vector, with the second motion vector being a first zero vector; deriving a third candidate having a third motion vector and a second reference picture index value that identifies a second reference picture corresponding to the third motion vector, with the third motion vector being a second zero vector. One candidate from a plurality of candidates, including the first, second, and third candidate is selected, and an index identifying the selected one candidate is coded.

公开(公告)号：US12015854B2

公开(公告)日：2024-06-18

申请号：US18502315

申请日：2023-11-06

申请人： B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.

发明人： Ki Baek Kim

IPC分类号： H04N19/00 ,  G06T3/40 ,  H04N19/103 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/176 ,  H04N19/51 ,  H04N19/625 ,  H04N23/698

CPC分类号： H04N23/698 ,  G06T3/40 ,  H04N19/103 ,  H04N19/11 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/134 ,  H04N19/159 ,  H04N19/176 ,  H04N19/51 ,  H04N19/625

摘要： A method of decoding an image, includes obtaining at least one offset for a picture, deriving a variable for scaling for the picture based on the at least one offset, and performing inter prediction based on the variable for scaling for the picture. The at least one offset is defined with a direction of scaling.

公开(公告)号：US20240163450A1

公开(公告)日：2024-05-16

申请号：US18517536

申请日：2023-11-22

申请人： INTERDIGITAL VC HOLDINGS, INC.

发明人： Qian XU ,  Joel SOLE ,  Peng YIN ,  Yunfei ZHENG ,  Xiaoan LU

IPC分类号： H04N19/157 ,  H04N19/105 ,  H04N19/12 ,  H04N19/132 ,  H04N19/134 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

CPC分类号： H04N19/157 ,  H04N19/105 ,  H04N19/12 ,  H04N19/132 ,  H04N19/134 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

摘要： Methods and apparatus are provided for intra coding a block having pixels assigned to groups. An apparatus includes a video encoder for encoding a block in a picture using intra prediction by dividing pixels within the block into at least a first group and a second group and encoding the pixels in the first group prior to encoding the pixels in the second group. A prediction for at least one of the pixels within the second group is obtained by evaluating the pixels within the first group and the second group.