公开(公告)号：US20240364930A1

公开(公告)日：2024-10-31

申请号：US18763311

申请日：2024-07-03

申请人： BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.

发明人： Xiaoyu XIU ,  Yi-Wen CHEN ,  Tsung-Chuan MA ,  Hong-Jheng JHU ,  Xianglin WANG ,  Bing YU

IPC分类号： H04N19/70 ,  H04N19/12 ,  H04N19/132 ,  H04N19/136 ,  H04N19/174 ,  H04N19/186 ,  H04N19/30 ,  H04N19/60

CPC分类号： H04N19/70 ,  H04N19/12 ,  H04N19/132 ,  H04N19/136 ,  H04N19/174 ,  H04N19/186 ,  H04N19/30 ,  H04N19/60

摘要： An electronic apparatus performs a method of decoding video data, comprising: receiving, from bitstream, a first syntax element in a slice header of a slice that indicates whether luma mapping with chroma scaling (LMCS) is applied to a coding unit in the slice; receiving a second syntax element for the coding unit that indicates whether the coding unit has been coded using adaptive color-space transform (ACT); if the second syntax element has a non-zero value, decoding the coding unit by applying inverse ACT to convert luma and chroma residuals of the coding unit from a transformed color space to an original color space of the video data; and if the first syntax element has a non-zero value, decoding the coding unit by performing inverse luma mapping to the luma samples and inverse scaling to the chroma residuals of the coding unit after performing the inverse ACT.

公开(公告)号：US20240364909A1

公开(公告)日：2024-10-31

申请号：US18769103

申请日：2024-07-10

申请人： Huawei Technologies Co., Ltd.

发明人： Ye-Kui Wang

IPC分类号： H04N19/44 ,  H04N19/149 ,  H04N19/154 ,  H04N19/169 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/423 ,  H04N19/46 ,  H04N19/70

CPC分类号： H04N19/44 ,  H04N19/149 ,  H04N19/154 ,  H04N19/172 ,  H04N19/187 ,  H04N19/188 ,  H04N19/30 ,  H04N19/423 ,  H04N19/46 ,  H04N19/70

摘要： A video coding mechanism is disclosed. The mechanism includes encoding a bitstream comprising one or more output layer sets (OLSs). A video parameter set (VPS) specifying the OLS is also encoded into the bitstream. The VPS comprises sequence-level hypothetical reference decoder (HRD) parameters that apply to all OLSs specified by the VPS.
A set of bitstream conformance tests are performed based on the sequence-level HRD parameters. The bitstream is stored for communication toward a decoder.

公开(公告)号：US20240364884A1

公开(公告)日：2024-10-31

申请号：US18769189

申请日：2024-07-10

申请人： BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.

发明人： Xiaoyu XIU ,  Yi-Wen CHEN ,  Tsung-Chuan MA ,  Hong-Jheng JHU ,  Wei CHEN ,  Che-Wei KUO ,  Xianglin WANG ,  Bing YU

IPC分类号： H04N19/12 ,  H04N19/124 ,  H04N19/132 ,  H04N19/18 ,  H04N19/186 ,  H04N19/30 ,  H04N19/60 ,  H04N19/70

CPC分类号： H04N19/12 ,  H04N19/124 ,  H04N19/132 ,  H04N19/18 ,  H04N19/186 ,  H04N19/30 ,  H04N19/60 ,  H04N19/70

摘要： An electronic apparatus performs a method of coding video data. The method comprises: receiving, from the bitstream, syntax elements associated with a coding unit, wherein the syntax elements include a first coded block flag (CBF) for residual samples of a first chroma component, a second CBF for residual samples of a second chroma component, and a third syntax element indicating whether adaptive color transform (ACT) is applied to the coding unit; determining whether to perform the chroma residual scaling to the residual samples of the chroma components according to the first CBF, the second CBF, and the third syntax element; in accordance with a determination to perform the chroma residual scaling to the residual samples of the first and second chroma components, scaling the residual samples of the at least one of the first and second chroma components based on a corresponding scaling parameter.

公开(公告)号：US20240348809A1

公开(公告)日：2024-10-17

申请号：US18751520

申请日：2024-06-24

申请人： Lemon Inc.

发明人： Yue Li ,  Li Zhang ,  Kai Zhang

IPC分类号： H04N19/42 ,  H04N19/124 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/70 ,  H04N19/82

CPC分类号： H04N19/42 ,  H04N19/124 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/70 ,  H04N19/82

摘要： A method implemented by a video coding apparatus. The method includes applying an output of a neural network (NN) filter to an unfiltered sample of a video unit to generate a residual, applying a scaling function to the residual to generate a scaled residual, adding another unfiltered sample to the scaled residual to generate a filtered sample, and converting between a video media file and a bitstream based on the filtered sample that was generated. A corresponding video coding apparatus and non-transitory computer readable medium are also disclosed.

公开(公告)号：US20240333954A1

公开(公告)日：2024-10-03

申请号：US18743536

申请日：2024-06-14

申请人： InterDigital VC Holdings, Inc.

发明人： Philippe Bordes ,  Franck Hiron ,  Pierre Andrivon ,  Patrick Lopez ,  Philippe Salmon

IPC分类号： H04N19/44 ,  H04N19/176 ,  H04N19/30 ,  H04N19/50 ,  H04N19/573 ,  H04N21/235 ,  H04N21/438

CPC分类号： H04N19/44 ,  H04N19/176 ,  H04N19/30 ,  H04N19/50 ,  H04N19/573 ,  H04N21/2358 ,  H04N21/4384

摘要： A method for decoding a picture block is disclosed. The decoding method comprises: decoding (10) at least one stream S_diff into decoded data and into one information for identifying a reconstructed reference picture in a decoder picture buffer; reconstructing (12) a special reference picture from at least the identified reconstructed reference picture and from the decoded data; reconstructing (16) the picture block from at least the special reference picture, wherein the at least the special reference picture is not displayed.

公开(公告)号：US12108062B2

公开(公告)日：2024-10-01

申请号：US18350886

申请日：2023-07-12

申请人： DEEPX CO., LTD.

发明人： IlMyeong Im ,  SunMi Lee

IPC分类号： H04N19/42 ,  G06N3/063 ,  H04N19/172 ,  H04N19/30

CPC分类号： H04N19/42 ,  G06N3/063 ,  H04N19/172 ,  H04N19/30

摘要： A neural processing unit (NPU) for decoding video and/or feature map may incluide at least one processing element (PE) for an artificial neural network (ANN), the at least one PE to receive and decode a bitstream. The bitstream is received in units of frames, and one frame includes a weight for an ANN model, data of a base layer, and data of a plurality of enhancement layers. An NPU for encoding video and/or feature map may include at least one processing element (PE) for an artificial neural network (ANN), the at least one PE to encode an input video or feature map and to transmit the encoded input video or feature map as a bitstream. The at least one PE transmits the bitstream in units of frames, and one frame includes a weight for an ANN model, data of a base layer, and data of a plurality of enhancement layers.

公开(公告)号：US20240323412A1

公开(公告)日：2024-09-26

申请号：US18731011

申请日：2024-05-31

申请人： HUMAX CO., LTD.

发明人： Jaehong JUNG ,  Juhyung SON ,  Dongcheol KIM ,  Geonjung KO ,  Jinsam KWAK

IPC分类号： H04N19/30 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/96

CPC分类号： H04N19/30 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/96

摘要： The present disclosure relates to a processing method of a video signal, the processing method comprising the steps of: scaling a transform coefficient for a current block on the basis of an intermediate scaling factor array; when the flag indicates that a low frequency non-separable transform is applied to the current block, obtaining a residual for the current block by applying an inverse transform of a non-separable transform and an inverse transform of a primary transform on the scaled transform coefficient, wherein the primary transform is a transform applied to a residual signal of a spatial domain before the low frequency non-separable transform; and reconstructing the current block on the basis of the residual and a predictor of the current block.

公开(公告)号：US12096035B2

公开(公告)日：2024-09-17

申请号：US17714003

申请日：2022-04-05

申请人： Huawei Technologies Co., Ltd.

发明人： Ye-Kui Wang

IPC分类号： H04N19/00 ,  H04N19/105 ,  H04N19/136 ,  H04N19/159 ,  H04N19/169 ,  H04N19/172 ,  H04N19/174 ,  H04N19/187 ,  H04N19/30 ,  H04N19/423 ,  H04N19/46 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593 ,  H04N19/70

CPC分类号： H04N19/70 ,  H04N19/105 ,  H04N19/136 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/187 ,  H04N19/188 ,  H04N19/30 ,  H04N19/423 ,  H04N19/46 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593

摘要： A video coding mechanism is disclosed. The mechanism includes encoding a coded layer video sequence (CLVS) for a layer in a bitstream. A sequence parameter set (SPS) referred to by the CLVS is also encoded into the bitstream. The SPS is constrained to have a network abstraction layer (NAL) unit header layer identifier (nuh_layer_id) value equal to a nuh_layer_id value of the CLVS when the layer does not use inter-layer prediction. The bitstream is stored for communication toward a decoder.

公开(公告)号：US12096034B2

公开(公告)日：2024-09-17

申请号：US17713991

申请日：2022-04-05

申请人： Huawei Technologies Co., Ltd.

发明人： Ye-Kui Wang

IPC分类号： H04N19/00 ,  H04N19/105 ,  H04N19/136 ,  H04N19/159 ,  H04N19/169 ,  H04N19/172 ,  H04N19/174 ,  H04N19/187 ,  H04N19/30 ,  H04N19/423 ,  H04N19/46 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593 ,  H04N19/70

CPC分类号： H04N19/70 ,  H04N19/105 ,  H04N19/136 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/187 ,  H04N19/188 ,  H04N19/30 ,  H04N19/423 ,  H04N19/46 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593

摘要： A method of decoding is provided. The method includes receiving a sub-bitstream having a sequence parameter set (SPS) with a profile tier level (PTL) syntax structure for an output layer set (OLS) with only one layer; setting a number of layers in the OLS equal to one based on the OLS having the only one layer; obtaining the PTL syntax structure for the OLS with the only one layer from the SPS when the number of layers in the OLS has been set equal to one; and decoding a picture from the only one layer using the PTL syntax structure to obtain a decoded picture. A corresponding method of encoding is also provided.

公开(公告)号：US12096021B2

公开(公告)日：2024-09-17

申请号：US17949045

申请日：2022-09-20

申请人： Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

发明人： Li Zhang ,  Kai Zhang ,  Hongbin Liu ,  Jizheng Xu ,  Yue Wang

IPC分类号： H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/52 ,  H04N19/70

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/70

摘要： A method for video processing includes performing a conversion between a current video block of a video region of a video and a coded representation of the video. The conversion uses a coding mode in which the current video block is constructed based on a first domain and a second domain and/or chroma residue is scaled in a luma-dependent manner. A parameter set in the coded representation comprises parameter information for the coding mode.