公开(公告)号：US20240298018A1

公开(公告)日：2024-09-05

申请号：US18499437

申请日：2023-11-01

申请人： V-NOVA INTERNATIONAL LIMITED

发明人： Robert JOHNSON

IPC分类号： H04N19/36 ,  H04N19/132 ,  H04N19/169 ,  H04N19/184 ,  H04N19/187 ,  H04N19/30 ,  H04N19/31 ,  H04N19/34 ,  H04N19/70

CPC分类号： H04N19/36 ,  H04N19/132 ,  H04N19/184 ,  H04N19/31 ,  H04N19/70 ,  H04N19/187 ,  H04N19/1883 ,  H04N19/30 ,  H04N19/34

摘要： For a given image in a set of images, residual data is obtained and is useable by a decoder to reconstruct a first representation of the given image at a first level of quality using a second representation of the given image at the first level of quality. The second representation is based on a representation of the given image at a second, lower level of quality. Configuration data relating to processing of the residual data is generated and output for processing by the decoder. The configuration data comprises a temporal processing parameter (754, 854) that specifies an extent of temporal processing associated with reconstructing, for the given image, the first representation using the second representation and the residual data, wherein performing temporal processing comprises using data based on multiple images in the set of images.

公开(公告)号：US12052427B2

公开(公告)日：2024-07-30

申请号：US17713205

申请日：2022-04-04

申请人： TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED

发明人： Jingran Wu ,  Shishen Xu ,  Jun Zhao ,  Hao Li ,  Yaqing Li ,  Chengjie Tu ,  Zirong Zhu ,  Liang Wang

IPC分类号： H04N19/146 ,  H04N19/159 ,  H04N19/172 ,  H04N19/34

CPC分类号： H04N19/146 ,  H04N19/159 ,  H04N19/172 ,  H04N19/34

摘要： A video data processing method is provided to a server. The method includes: obtaining a video sequence associated with a video source and obtaining a video quality standard parameter associated with the video sequence; determining a video feature according to video quality standard parameter; predicting an encoding bit rate according to the video quality standard parameter and the video feature; and encoding the video sequence according to the encoding bit rate to obtain an encoded video sequence associated with the video source.

公开(公告)号：US20240251082A1

公开(公告)日：2024-07-25

申请号：US18583462

申请日：2024-02-21

申请人： Microsoft Technology Licensing, LLC

发明人： Shankar Regunathan ,  Shijun Sun ,  Chengjie Tu ,  Chih-Lung Lin

IPC分类号： H04N19/126 ,  H04N19/124 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/187 ,  H04N19/196 ,  H04N19/34 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70

CPC分类号： H04N19/126 ,  H04N19/124 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/187 ,  H04N19/196 ,  H04N19/197 ,  H04N19/34 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/184

摘要： Techniques and tools for encoding enhancement layer video with quantization that varies spatially and/or between color channels are presented, along with corresponding decoding techniques and tools. For example, an encoding tool determines whether quantization varies spatially over a picture, and the tool also determines whether quantization varies between color channels in the picture. The tool signals quantization parameters for macroblocks in the picture in an encoded bit stream. In some implementations, to signal the quantization parameters, the tool predicts the quantization parameters, and the quantization parameters are signaled with reference to the predicted quantization parameters. A decoding tool receives the encoded bit stream, predicts the quantization parameters, and uses the signaled information to determine the quantization parameters for the macroblocks of the enhancement layer video. The decoding tool performs inverse quantization that can vary spatially and/or between color channels.

公开(公告)号：US20240195972A1

公开(公告)日：2024-06-13

申请号：US18583487

申请日：2024-02-21

申请人： Microsoft Technology Licensing, LLC

发明人： Shankar Regunathan ,  Shijun Sun ,  Chengjie Tu ,  Chih-Lung Lin

IPC分类号： H04N19/126 ,  H04N19/124 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/187 ,  H04N19/196 ,  H04N19/34 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70

CPC分类号： H04N19/126 ,  H04N19/124 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/187 ,  H04N19/196 ,  H04N19/197 ,  H04N19/34 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/184

摘要： Techniques and tools for encoding enhancement layer video with quantization that varies spatially and/or between color channels are presented, along with corresponding decoding techniques and tools. For example, an encoding tool determines whether quantization varies spatially over a picture, and the tool also determines whether quantization varies between color channels in the picture. The tool signals quantization parameters for macroblocks in the picture in an encoded bit stream. In some implementations, to signal the quantization parameters, the tool predicts the quantization parameters, and the quantization parameters are signaled with reference to the predicted quantization parameters. A decoding tool receives the encoded bit stream, predicts the quantization parameters, and uses the signaled information to determine the quantization parameters for the macroblocks of the enhancement layer video. The decoding tool performs inverse quantization that can vary spatially and/or between color channels.

公开(公告)号：US11910037B2

公开(公告)日：2024-02-20

申请号：US17328295

申请日：2021-05-24

申请人： Scale Video Coding, LLC

发明人： Erik Van Zijst

IPC分类号： H04N21/2343 ,  H04L45/00 ,  H04L45/02 ,  H04L45/12 ,  H04L45/18 ,  H04L45/302 ,  H04L45/48 ,  H04L45/64 ,  H04L47/10 ,  H04L47/11 ,  H04L47/2408 ,  H04L47/2416 ,  H04L47/2441 ,  H04L47/30 ,  H04L47/32 ,  H04L47/34 ,  H04L61/103 ,  H04L61/00 ,  H04L12/18 ,  H04L45/16 ,  H04L1/1867 ,  H04L43/0829 ,  H04L47/125 ,  H04N19/34 ,  H04N19/39 ,  H04N21/236 ,  H04N21/2383 ,  H04N21/61 ,  H04N21/6405 ,  H04N21/643 ,  H04L1/18 ,  H04N21/2662 ,  H04L101/604

CPC分类号： H04N21/234327 ,  H04L1/1874 ,  H04L1/1887 ,  H04L12/1836 ,  H04L43/0829 ,  H04L45/00 ,  H04L45/02 ,  H04L45/04 ,  H04L45/12 ,  H04L45/123 ,  H04L45/16 ,  H04L45/18 ,  H04L45/302 ,  H04L45/48 ,  H04L45/64 ,  H04L47/10 ,  H04L47/11 ,  H04L47/125 ,  H04L47/15 ,  H04L47/2408 ,  H04L47/2416 ,  H04L47/2441 ,  H04L47/30 ,  H04L47/32 ,  H04L47/34 ,  H04L61/00 ,  H04L61/103 ,  H04N19/34 ,  H04N19/39 ,  H04N21/2383 ,  H04N21/23605 ,  H04N21/6125 ,  H04N21/6405 ,  H04N21/64322 ,  H04L1/18 ,  H04L12/1868 ,  H04L12/1881 ,  H04L2101/604 ,  H04N21/2662

摘要： Embodiments include an overlay multicast network. The overlay multicast network may provide a set of features to ensure reliable and timely arrival of multicast data. The embodiments include a congestion control system that may prioritize designated layers of data within a data stream over other layers of the same data stream. Each data stream transmitted over the network may be given an equal share of the bandwidth. Addressing in routing tables maintained by routers may utilize summarized addressing based on the difference in location of the router and destination address. Summarization levels may be adjusted to minimize travel distances for packets in the network. Data from high priority data stream layers may also be retransmitted upon request from a destination machine to ensure reliable delivery of data.

公开(公告)号：US20230412824A1

公开(公告)日：2023-12-21

申请号：US18359202

申请日：2023-07-26

申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.

发明人： Robert SKUPIN ,  Yago SÁNCHEZ DE LA FUENTE ,  Thomas SCHIERL ,  Cornelius HELLGE ,  Karsten GRÛNEBERG ,  Thomas WIEGAND

IPC分类号： H04N19/33 ,  H04N19/70 ,  H04N19/132 ,  H04N19/88 ,  H04N19/174 ,  H04N19/34 ,  H04N19/119 ,  H04N19/167 ,  H04N19/46 ,  H04N19/146

CPC分类号： H04N19/33 ,  H04N19/70 ,  H04N19/132 ,  H04N19/88 ,  H04N19/174 ,  H04N19/34 ,  H04N19/119 ,  H04N19/167 ,  H04N19/46 ,  H04N19/146

摘要： A video data stream is rendered reducible in a manner so that the reduction leads to a restriction of pictures of the reduced video data stream to merely a predetermined subarea of the pictures of the original video data stream and in a manner so that transcoding, such as re-quantization, may be avoided and a conformance of the reduced video data stream relative to the codec underlying the original video data stream be maintained. This is achieved by providing the video data stream with information including an indication of the predetermined subarea and replacement indices for redirecting the indices included by the payload portion so as to refer to, and/or replacement parameters for adjusting the first set of coding parameter settings so as to result in, a second set of coding parameter settings.

公开(公告)号：US11836368B2

公开(公告)日：2023-12-05

申请号：US18071454

申请日：2022-11-29

申请人： Imagination Technologies Limited

发明人： Linling Zhang ,  Simon Fenney

IPC分类号： G06F3/06 ,  H04N19/645 ,  H04N19/34

CPC分类号： G06F3/064 ,  G06F3/0608 ,  G06F3/0673 ,  H04N19/34 ,  H04N19/645

摘要： A lossy method of compressing data, such as image data, which uses wrap-around wavelet compression is described. Each data value is divided into two parts and the first parts, which comprise the most significant bits from the data values, are compressed using wrap-around wavelet compression. Depending upon the target compression ratio and the compression ratio achieved by compressing just the first parts, none, one or more bits from the second parts, or from a data value derived from the second parts, may be appended to the compressed first parts. The method described may be lossy or may be lossless. A corresponding decompression method is also described.

公开(公告)号：US11736725B2

公开(公告)日：2023-08-22

申请号：US17500362

申请日：2021-10-13

申请人： TDF

发明人： Thibaud Biatek

IPC分类号： H04N19/597 ,  H04N19/174 ,  H04N19/34 ,  H04N19/103 ,  H04N19/105 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N19/176

CPC分类号： H04N19/597 ,  H04N19/174 ,  H04N19/176 ,  H04N19/34

摘要： A method for encoding a data stream representing an omnidirectional video. The method includes: encoding, in the stream, at least one base layer representative of a 2D or 3D video, the 2D or 3D video being representative of a view of a same scene captured by the omnidirectional video; and encoding, in the stream, one enhancement layer representative of the omnidirectional video. The enhancement layer is encoded by prediction relative to the base layer. The prediction of the enhancement layer relative to the base layer includes: generating a reference sub-image obtained by geometrical projection on the reference sub-image of an image, called a base image, rebuilt from the base layer, and storing the reference sub-image in association with shift information enabling an encoder to determine the location of the reference sub-image in the enhancement image in a non-transitory computer-readable memory of reference sub-images of the enhancement layer.

公开(公告)号：US11711522B2

公开(公告)日：2023-07-25

申请号：US17480850

申请日：2021-09-21

申请人： ARRIS Enterprises LLC

发明人： Mandayam Narasimhan ,  Ajay K. Luthra

IPC分类号： H04N19/156 ,  H04N19/30 ,  H04N19/187 ,  H04N19/14 ,  H04N19/70 ,  H04N21/434 ,  H04N21/44 ,  H04N19/46 ,  H04N21/2362 ,  H04N21/2343 ,  H04N21/238 ,  H04N19/31 ,  H04N19/34 ,  H04N19/36

CPC分类号： H04N19/156 ,  H04N19/14 ,  H04N19/187 ,  H04N19/30 ,  H04N19/31 ,  H04N19/34 ,  H04N19/36 ,  H04N19/46 ,  H04N19/70 ,  H04N21/238 ,  H04N21/2362 ,  H04N21/234327 ,  H04N21/4345 ,  H04N21/4347 ,  H04N21/44004

摘要： In one embodiment, a method of signaling individual layers in a transport stream includes: determining a plurality of layers in a transport stream, wherein each layer includes a respective transport stream parameter setting; determining an additional layer for the plurality of layers in the transport stream, wherein the additional layer enhances one or more of the plurality of layers including a base layer and the respective layer parameter settings for the plurality of layers do not take into account the additional layer; and determining an additional transport stream parameter setting for the additional layer, the additional transport stream parameter setting specifying a relationship between the additional layer and at least a portion of the plurality of layers, wherein the additional transport stream parameter setting is used to decode the additional layer and the at least a portion of the plurality of layers.

公开(公告)号：US20230209073A1

公开(公告)日：2023-06-29

申请号：US18117083

申请日：2023-03-03

申请人： ARRIS Enterprises LLC

发明人： Koohyar Minoo ,  Ajay K. Luthra ,  David M. Baylon

IPC分类号： H04N19/36 ,  H04N19/187 ,  H04N19/46 ,  H04N19/127 ,  H04N19/30 ,  H04N19/147 ,  H04N19/33 ,  H04N19/34 ,  H04N19/80

CPC分类号： H04N19/36 ,  H04N19/187 ,  H04N19/46 ,  H04N19/127 ,  H04N19/30 ,  H04N19/147 ,  H04N19/33 ,  H04N19/34 ,  H04N19/80 ,  H04N19/186

摘要： A Scalable Video Coding (SVC) process is provided for scalable video coding that takes into account color gamut primaries along with spatial resolution. The process provides for re-sampling using video color data obtained from an encoder or decoder process of a base layer (BL) in a multi-layer system to enable improved encoding and decoding in an enhancement layer (EL) or higher layers taking into account color conversion between layers. Examples of applicable SVC include MPEG-4 Advanced Video Coding (AVC) and High Efficiency Video Coding (HEVC). With the SVC process, video data expressed in one color gamut space can be used for prediction in encoding with a possibly different color space, and accommodation for different spatial resolution and bit-depth can be made as well.