公开(公告)号：US11924465B2

公开(公告)日：2024-03-05

申请号：US17516858

申请日：2021-11-02

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Madhukar Budagavi

IPC分类号： H04N19/11 ,  H04N19/107 ,  H04N19/117 ,  H04N19/176 ,  H04N19/186 ,  H04N19/436 ,  H04N19/44 ,  H04N19/593 ,  H04N19/80 ,  H04N19/86

CPC分类号： H04N19/593 ,  H04N19/107 ,  H04N19/11 ,  H04N19/117 ,  H04N19/176 ,  H04N19/186 ,  H04N19/436 ,  H04N19/44 ,  H04N19/80 ,  H04N19/86

摘要： A method for luma-based chroma intra-prediction in a video encoder or a video decoder is provided that includes filtering reconstructed neighboring samples of a reconstructed down sampled luma block, computing parameters α and β of a linear model using the filtered, reconstructed neighboring samples of the reconstructed down sampled luma block and reconstructed neighboring samples of a corresponding chroma block, wherein the linear model is PredC[x,y]=α·RecL′[x,y]+β, wherein x and y are sample coordinates, PredC is predicted chroma samples, and RecL′ is samples of the reconstructed down sampled luma block, and computing samples of a predicted chroma block from corresponding samples of the reconstructed down sampled luma block using the linear model and the parameters.

公开(公告)号：US11924443B2

公开(公告)日：2024-03-05

申请号：US17737103

申请日：2022-05-05

申请人： Texas Instruments Incorporated

发明人： Minhua Zhou

IPC分类号： H04N19/61 ,  H04N19/103 ,  H04N19/117 ,  H04N19/167 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70 ,  H04N19/82 ,  H04N19/12 ,  H04N19/124 ,  H04N19/157 ,  H04N19/436

CPC分类号： H04N19/167 ,  H04N19/103 ,  H04N19/117 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/12 ,  H04N19/124 ,  H04N19/157 ,  H04N19/436

摘要： A method for coding a video sequence is provided that includes encoding a portion of a picture in the video sequence in lossless coding mode, and signaling a lossless coding indicator in a compressed bit stream, wherein the lossless coding indicator corresponds to the portion of a picture and indicates whether or not the portion of the picture is losslessly coded. A method for decoding a compressed video bit stream is provided that includes determining that lossless coding mode is enabled, decoding a lossless coding indicator from the compressed video bit stream, wherein the lossless coding indicator corresponds to a portion of a picture in the compressed video bit stream and indicates whether or not the portion of the picture is losslessly coded, and decoding the portion of the picture in lossless coding mode when the lossless coding indicator indicates the portion of the picture is losslessly coded.

公开(公告)号：US11917173B2

公开(公告)日：2024-02-27

申请号：US17370913

申请日：2021-07-08

申请人： Huawei Technologies Co., Ltd.

发明人： Ye-Kui Wang ,  FNU Hendry

IPC分类号： H04N19/436 ,  H04N19/119 ,  H04N19/132 ,  H04N19/137 ,  H04N19/169 ,  H04N19/174 ,  H04N19/184 ,  H04N19/44 ,  H04N19/593 ,  H04N19/176 ,  H04N19/31 ,  H04N19/70

CPC分类号： H04N19/436 ,  H04N19/119 ,  H04N19/132 ,  H04N19/137 ,  H04N19/174 ,  H04N19/184 ,  H04N19/188 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/593 ,  H04N19/176 ,  H04N19/31 ,  H04N19/70

摘要： A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising one or more sub-pictures partitioned from a picture such that each sub-picture includes a sub-picture width that is an integer multiple of a coding tree unit (CTU) size when the each sub-picture includes a right boundary that does not coincide with a right boundary of the picture. The bitstream is parsed to obtain the one or more sub-pictures. The one or more sub-pictures are decoded to create a video sequence. The video sequence is forwarded for display.

公开(公告)号：US20240056589A1

公开(公告)日：2024-02-15

申请号：US17884436

申请日：2022-08-09

申请人： NVIDIA Corporation

发明人： Jitendra Kumar ,  Tushar Khinvasara ,  Bhushan Rupde ,  Kaustubh Purandare

IPC分类号： H04N19/423 ,  H04L65/65 ,  H04L69/22 ,  H04N19/169 ,  H04N19/70 ,  H04N19/436

CPC分类号： H04N19/423 ,  H04L65/65 ,  H04L69/22 ,  H04N19/188 ,  H04N19/70 ,  H04N19/436

摘要： Disclosed are apparatuses, systems, and techniques that improve memory and computational efficiency of remote direct memory accesses into a memory of a graphics processing unit. The techniques include but are not limited to receiving packets with video frame data, storing the plurality of packets in a memory of a network controller, processing the packets to obtain unit(s) of the video frame, storing the unit(s) representative of the video frame in a memory of a graphics processing unit (GPU), and extracting the data of the video frame from the units representative of the video frame, stored in the memory of the GPU, to render the video frame.

公开(公告)号：US20240048707A1

公开(公告)日：2024-02-08

申请号：US18382132

申请日：2023-10-20

申请人： Texas Instruments Incorporated

发明人： Minhua Zhou

IPC分类号： H04N19/129 ,  H04N19/433 ,  H04N19/119 ,  H04N19/174 ,  H04N19/436

CPC分类号： H04N19/129 ,  H04N19/433 ,  H04N19/119 ,  H04N19/174 ,  H04N19/436

摘要： A method and apparatus for sub-picture based raster scanning coding order. The method includes dividing an image into even sub-pictures, and encoding parallel sub-pictures on multi-cores in raster scanning order within sub-pictures, wherein from core to core, coding of the sub-picture is independent around sub-picture boundaries, and wherein within a core, coding of a sub-picture is at least one of dependent or independent around sub-picture boundaries.

公开(公告)号：US11876985B2

公开(公告)日：2024-01-16

申请号：US17587849

申请日：2022-01-28

申请人： GE Video Compression, LLC

发明人： Thomas Schierl ,  Valeri George ,  Anastasia Henkel ,  Detlev Marpe ,  Karsten Grüneberg ,  Robert Skupin

IPC分类号： H04N19/169 ,  H04N19/46 ,  H04N19/91 ,  H04N19/70 ,  H04N19/13 ,  H04N19/463 ,  H04N19/174 ,  H04N19/436 ,  H04N19/593

CPC分类号： H04N19/188 ,  H04N19/13 ,  H04N19/174 ,  H04N19/436 ,  H04N19/46 ,  H04N19/463 ,  H04N19/70 ,  H04N19/91 ,  H04N19/593

摘要： The handling of scalable data streams by network entities is rendered less complex by, in the data stream, accompanying packets which actually carry data by packets of a different packet type which have a scalability axes descriptor defining the number of scalability axes and a semantic meaning thereof. In another aspect, the handling of scalable data streams by network entities is rendered more efficient by conveying level and/or profile descriptors using packets other than the data carrying packets, with profile and/or level descriptors being divided up into a first set explicitly signaling the definition of the available coding option set and/or available syntax element value range for a respective operation point, and a second set of profile and/or level descriptors which signal the definition of the available coding option set and/or available syntax element value range for their respective operation points by reference another profile and/or level descriptor.

公开(公告)号：US11871019B2

公开(公告)日：2024-01-09

申请号：US17210921

申请日：2021-03-24

申请人： Sun Patent Trust

发明人： Semih Esenlik ,  Matthias Narroschke ,  Thomas Wedi

IPC分类号： H04N19/44 ,  H04N13/189 ,  H04N19/597 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/436 ,  H04N19/174 ,  H04N19/11 ,  H04N19/136 ,  H04N19/192 ,  H04N19/119 ,  H04N19/167 ,  H04N19/17

CPC分类号： H04N19/44 ,  H04N13/189 ,  H04N19/11 ,  H04N19/119 ,  H04N19/136 ,  H04N19/167 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/192 ,  H04N19/436 ,  H04N19/46 ,  H04N19/597 ,  H04N19/61

摘要： An image decoding method for decoding a bitstream including a coded signal resulting from coding tiles and slices into which an image is partitioned, the method including decoding the coded signal, wherein each of the slices is either a normal slice having, in a header, information used for an other slice or a dependent slice which is decoded using information included in a slice header of another slice, and when the normal slice starts from a position other than a beginning of a first tile, a second tile coded next to the first tile does not start from the dependent slice.

公开(公告)号：US11871018B2

公开(公告)日：2024-01-09

申请号：US17451964

申请日：2021-10-22

申请人： NVIDIA Corporation

发明人： Jianjun Chen ,  Wei Feng ,  Xi He ,  Sangeun Han ,  Ranga Ramanujam Srinivasan

IPC分类号： H04N19/436 ,  H04N19/176 ,  H04N19/105 ,  H04N19/14

CPC分类号： H04N19/436 ,  H04N19/105 ,  H04N19/14 ,  H04N19/176

摘要： Disclosed are techniques for compressing data of an image. Intermediate pixels may be determined. Each location of the image may be associated with a block of a plurality of blocks of a first size and a block of a plurality of blocks of a second size. For each block of the first size and of the second size, a first cost for a first mode and a second cost for a second mode may be determined in parallel using the intermediate pixels. A final mode and a final block size may be selected for each location of the image using the first cost and the second cost for each of a respective block of the first size and a respective block of the second size associated with a corresponding location. Final pixels may be determined, and a representation of the image may be obtained based on the final pixels.

公开(公告)号：US20230421823A1

公开(公告)日：2023-12-28

申请号：US18159362

申请日：2023-01-25

申请人： USTUDIO, INC.

发明人： Joshua P. Marshall ,  Jennifer L. Grogono

IPC分类号： H04N21/2343 ,  H04N21/6547 ,  H04N19/436 ,  H04N19/40 ,  H04N21/2547 ,  G06F3/0482 ,  G06F3/04842 ,  H04L65/60 ,  H04N21/236 ,  H04N21/2385

CPC分类号： H04N21/234309 ,  H04N21/6547 ,  H04N19/436 ,  H04N19/40 ,  H04N21/2547 ,  G06F3/0482 ,  G06F3/04842 ,  H04L65/60 ,  H04N21/23614 ,  H04N21/2385

摘要： An embodiment of the invention simplifies management of the “video lifecycle”. An embodiment includes one of more modules that streamline the video publishing process by abstracting technical steps such as video publishing, updating video, unpublishing video, retrieval or statistics concerning video, authorization to process video, validation of video, video metadata processing, video transcoding, and/or video transmission. Other embodiments are described herein.

公开(公告)号：US11838558B2

公开(公告)日：2023-12-05

申请号：US17900698

申请日：2022-08-31

申请人： DOLBY INTERNATIONAL AB

发明人： Jie Zhao ,  Christopher A. Segall ,  Louis J. Kerofsky

IPC分类号： H04N19/91 ,  H04N19/70 ,  H04N19/119 ,  H04N19/15 ,  H04N19/192 ,  H04N19/46 ,  H04N19/61 ,  H04N19/174 ,  H04N19/17 ,  H04N19/44 ,  H04N19/436 ,  H04N19/159 ,  H04N19/43 ,  H04N19/136 ,  H04N19/40 ,  H04N19/172 ,  H04N19/80 ,  H04N19/184

CPC分类号： H04N19/91 ,  H04N19/119 ,  H04N19/15 ,  H04N19/159 ,  H04N19/17 ,  H04N19/174 ,  H04N19/192 ,  H04N19/43 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N19/136 ,  H04N19/172 ,  H04N19/184 ,  H04N19/40 ,  H04N19/80

摘要： A method for decoding a video bitstream is disclosed. The method comprises: entropy decoding a first portion of a video bitstream, wherein first portion of video bitstream is associated with a video frame, thereby producing a first portion of decoded data; entropy decoding a second portion of video bitstream, wherein second portion of video bitstream is associated with video frame, thereby producing a second portion of decoded data, wherein entropy decoding second portion of video bitstream is independent of entropy decoding first portion of video bitstream; and reconstructing a first portion of video frame associated with video bitstream using first portion of decoded data and second portion of decoded data.