公开(公告)号：US20250039441A1

公开(公告)日：2025-01-30

申请号：US18908346

申请日：2024-10-07

Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Inventor： Junyan HUO ,  Yanzhuo MA ,  Fuzheng YANG ,  Hongqing DU ,  Ming LI

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/11 ,  H04N19/132 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/70

Abstract: An encoding method, a decoding method and a decoding device are disclosed. The decoding method includes: decoding a bitstream, and determining a first control parameter for the current block; determining a reference sample value of a first color component of the current block; determining a weighting coefficient according to the reference sample value of the first color component of the current block and the first control parameter; determining a predicted value of a second color component of the current block according to the weighting coefficient and a reference sample value of the second color component of the current block; and determining a reconstructed value of a sampling point of the second color component of the current block according to the predicted value of the second color component of the current block.

公开(公告)号：US20250030842A1

公开(公告)日：2025-01-23

申请号：US18907838

申请日：2024-10-07

Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Inventor： Junyan HUO ,  Yanzhuo MA ,  Fuzheng YANG ,  Danni WANG ,  Hongqing DU ,  Ming LI

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/42 ,  H04N19/50

Abstract: Disclosed are a coding method, a decoding method, and a decoding device. The decoding method includes: determining a reference sample value of a first color component of the current block; according to the reference sample value of the first color component of the current block, determining a weighting coefficient by means of a neural network model, wherein an input for the neural network model comprises the reference sample value of the first color component of the current block; according to the weighting coefficient and a reference sample value of a second color component of the current block, determining a predicted block of the second color component of the current block; and according to the predicted block, determining a reconstructed value of a sampling point of the second color component of the current block.

公开(公告)号：US20250047834A1

公开(公告)日：2025-02-06

申请号：US18910977

申请日：2024-10-09

Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Inventor： Junyan HUO ,  Yanzhuo MA ,  Fuzheng YANG ,  Hongqing DU ,  Ming LI

IPC: H04N19/105 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/82

Abstract: An encoding device, a decoding device, and a storage medium are provided. A reference sample value for a colour component of a current block is determined. A weighting factor is determined according to the reference sample value for the colour component of the current block. A first prediction block for a second colour component of the current block is determined according to the weighting factor and a reference sample value for the second colour component of the current block, where the number of prediction values of the second colour component of the first prediction block is greater than the number of second-colour-component samples in the current block. First filtering is performed on the first prediction block to determine a second prediction block for the second colour component of the current block. A reconstructed value of the second-colour-component sample in the current block is determined according to the second prediction block.

公开(公告)号：US20250039358A1

公开(公告)日：2025-01-30

申请号：US18909593

申请日：2024-10-08

Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Inventor： Junyan HUO ,  Yanzhuo MA ,  Fuzheng YANG ,  Hongqing DU ,  Danni WANG ,  Ming LI

IPC: H04N19/105 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/82

Abstract: An encoding device, a decoding device, and a storage medium are provided. A reference sample value for a colour component of a current block is determined. A weighting factor is determined according to the reference sample value for the colour component of the current block. A first prediction block for a second colour component of the current block is determined according to the weighting factor and a reference sample value for the second colour component of the current block, where the number of prediction values of the second colour component of the first prediction block is greater than the number of second-colour-component samples in the current block. First filtering is performed on the first prediction block to determine a second prediction block for the second colour component of the current block. A reconstructed value of the second-colour-component sample in the current block is determined according to the second prediction block.

公开(公告)号：US20240422330A1

公开(公告)日：2024-12-19

申请号：US18782956

申请日：2024-07-24

Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Inventor： Junyan HUO ,  Yanzhuo MA ,  Fuzheng YANG ,  Danni WANG ,  Hongqing DU ,  Ming LI

IPC: H04N19/186 ,  H04N19/105 ,  H04N19/176 ,  H04N19/50

Abstract: A coding method and apparatus, an encoding device, a decoding device, and a storage medium are provided. The method includes the following. A reference sample for a current block is determined. A weighting factor is determined according to the reference sample. A prediction value of a first colour component of a sample to-be-predicted in the current block is determined by weighting a first colour component value of the reference sample according to the weighting factor.