公开(公告)号：US20240283978A1

公开(公告)日：2024-08-22

申请号：US18567333

申请日：2022-06-27

申请人： Dolby Laboratories Licensing Corporation

发明人： Peng Yin ,  Sean Thomas McCarthy ,  Walter J. HUSAK ,  Konstantinos Konstantinides

IPC分类号： H04N19/70

CPC分类号： H04N19/70

摘要： Methods, systems, and bitstream syntax are described for determining the processing order of metadata messaging, such as supplemental enhancement information (SEI) messaging in MPEG video coding.

公开(公告)号：US20240251093A1

公开(公告)日：2024-07-25

申请号：US18616841

申请日：2024-03-26

申请人： Dolby Laboratories Licensing Corporation

发明人： Robin Atkins ,  Peng Yin ,  Taoran Lu ,  Fangjun Pu ,  Sean Thomas McCarthy ,  Walter J. Husak ,  Tao Chen ,  Guan-Ming Su

IPC分类号： H04N19/31 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70

CPC分类号： H04N19/31 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70

摘要： Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.

公开(公告)号：US20240171760A1

公开(公告)日：2024-05-23

申请号：US18430444

申请日：2024-02-01

申请人： Dolby Laboratories Licensing Corporation

发明人： Robin Atkins ,  Peng Yin ,  Taoran Lu ,  Fangjun Pu ,  Sean Thomas McCarthy ,  Walter J. Husak ,  Tao Chen ,  Guan-Ming Su

IPC分类号： H04N19/31 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70

CPC分类号： H04N19/31 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70

摘要： Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.

公开(公告)号：US20240080465A1

公开(公告)日：2024-03-07

申请号：US18508088

申请日：2023-11-13

申请人： Dolby Laboratories Licensing Corporation

发明人： Robin Atkins ,  Peng Yin ,  Taoran Lu ,  Fangjun Pu ,  Sean Thomas McCarthy ,  Walter J. Husak ,  Tao Chen ,  Guan-Ming Su

IPC分类号： H04N19/31 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70

CPC分类号： H04N19/31 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70

摘要： Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.

公开(公告)号：US11856232B2

公开(公告)日：2023-12-26

申请号：US17613801

申请日：2020-05-27

申请人： Dolby Laboratories Licensing Corporation

发明人： Fangjun Pu ,  Toaran Lu ,  Peng Yin ,  Sean Thomas McCarthy

IPC分类号： H04N19/70 ,  H04N19/172 ,  H04N19/186 ,  H04N19/46

CPC分类号： H04N19/70 ,  H04N19/172 ,  H04N19/186 ,  H04N19/46

摘要： A quantization parameter signalling mechanism for both SDR and HDR content in video coding is described using two approaches. The first approach is to send the user-defined QpC table directly in high level syntax. This leads to more flexible and efficient QP control for future codec development and video content coding. The second approach is to signal luma and chroma QPs independently. This approach eliminates the need for QpC tables and removes the dependency of chroma quantization parameter on luma QP.

公开(公告)号：US11818372B2

公开(公告)日：2023-11-14

申请号：US18096425

申请日：2023-01-12

申请人： Dolby Laboratories Licensing Corporation

发明人： Robin Atkins ,  Peng Yin ,  Taoran Lu ,  Fangjun Pu ,  Sean Thomas McCarthy ,  Walter J. Husak ,  Tao Chen ,  Guan-Ming Su

IPC分类号： H04N19/31 ,  H04N19/187 ,  H04N19/172 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70

CPC分类号： H04N19/31 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70

摘要： Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.

公开(公告)号：US20220286667A1

公开(公告)日：2022-09-08

申请号：US17422710

申请日：2020-03-11

申请人： Dolby Laboratories Licensing Corporation

发明人： Taoran LU ,  Fangjun PU ,  Peng YIN ,  Sean Thomas McCarthy ,  Tao CHEN

IPC分类号： H04N19/105 ,  H04N19/132 ,  H04N19/174 ,  H04N19/46 ,  H04N19/70

摘要： Methods, systems, and bitstream syntax are described for canvas size, single layer or multi-layer, sealable decoding, with support for regions of interest (ROI). using a decoder supporting reference picture resampling. Offset parameters for a region of interest in a current picture and offset parameters for an ROI in a reference picture are taken into consideration when computing scaling factors to apply reference picture resampling Syntax elements for supporting ROI regions under reference picture resampling arc also presented.

公开(公告)号：US20240357181A1

公开(公告)日：2024-10-24

申请号：US18671633

申请日：2024-05-22

申请人： DOLBY LABORATORIES LICENSING CORPORATION

发明人： Taoran Lu ,  Peng YIN ,  Guan-Ming Su ,  Dae Yeol Lee ,  Sean Thomas McCarthy ,  Tsung-Wei Huang ,  Sejin Oh

IPC分类号： H04N19/70 ,  H04N19/136 ,  H04N19/17

CPC分类号： H04N19/70 ,  H04N19/136 ,  H04N19/17

摘要： Methods and apparatus for transmission of volumetric images in the MPI format. According to an example embodiment, texture and alpha layers of multiplane images are packed, as tiles, into a sequence of video frames. The sequence of video frames is then compressed to generate a video bitstream, which is transmitted together with a metadata bitstream specifying at least the parameters of the packing arrangement for the tiles in the sequence of video frames. Example packing arrangements include various selectable spatial and temporal arrangements for texture layers, alpha layers, and camera views. In some examples, the metadata bitstream is implemented using a SEI message and includes parameters selected from the group consisting of a size of the reference view, the number of layers in the multiplane image, the number of simultaneous views, one or more characteristics of the packing arrangement, layer merging information, dynamic range adjustment information, and reference view information.

公开(公告)号：US20240089474A1

公开(公告)日：2024-03-14

申请号：US18506758

申请日：2023-11-10

申请人： DOLBY LABORATORIES LICENSING CORPORATION

发明人： Robin Atkins ,  Peng Yin ,  Taoran Lu ,  Fangjun Pu ,  Sean Thomas McCarthy ,  Walter J. Husak ,  Tao Chen ,  Guan-Ming Su

IPC分类号： H04N19/31 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70

CPC分类号： H04N19/31 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70

摘要： Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.

公开(公告)号：US20230073388A1

公开(公告)日：2023-03-09

申请号：US17950087

申请日：2022-09-21

申请人： Dolby Laboratories Licensing Corporation

发明人： Robin Atkins ,  Peng Yin ,  Taoran Lu ,  Fangjun Pu ,  Sean Thomas McCarthy ,  Walter J. Husak ,  Tao Chen ,  Guan-Ming Su

IPC分类号： H04N19/31 ,  H04N19/187 ,  H04N19/172 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70

摘要： Methods and systems for frame rate scalability are described. Support is provided for input and output video sequences with variable frame rate and variable shutter angle across scenes, or for input video sequences with fixed input frame rate and input shutter angle, but allowing a decoder to generate a video output at a different output frame rate and shutter angle than the corresponding input values. Techniques allowing a decoder to decode more computationally-efficiently a specific backward compatible target frame rate and shutter angle among those allowed are also presented.