公开(公告)号：US12115447B2

公开(公告)日：2024-10-15

申请号：US18080605

申请日：2022-12-13

申请人： Sony Interactive Entertainment Inc.

发明人： Mark E. Cerny ,  Kelvin M. Yong

IPC分类号： A63F13/355 ,  A63F13/358 ,  A63F13/52 ,  A63F13/53 ,  A63F13/77 ,  H04N19/115 ,  H04N19/142 ,  H04N19/177

CPC分类号： A63F13/355 ,  A63F13/358 ,  A63F13/52 ,  A63F13/53 ,  A63F13/77 ,  H04N19/115 ,  H04N19/142 ,  H04N19/177 ,  A63F2300/534 ,  A63F2300/538

摘要： A method for cloud gaming. The method including generating a plurality of video frames when executing a video game at a cloud gaming server. The method including encoding the plurality of video frames at an encoder bit rate, wherein the plurality of video frames that is compressed is transmitted to a client from a streamer of the cloud gaming server. The method including measuring a maximum receive bandwidth of a client. The method including monitoring the encoding of the plurality of video frames at the streamer. The method including dynamically tuning a parameter of the encoder based on the monitoring of the encoding.

公开(公告)号：US12088801B2

公开(公告)日：2024-09-10

申请号：US17446080

申请日：2021-08-26

申请人： TENCENT AMERICA LLC

发明人： Thuong Nguyen Canh ,  Guichun Li ,  Xiang Li ,  Shan Liu

IPC分类号： H04N19/117 ,  H04N19/105 ,  H04N19/124 ,  H04N19/14 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/51 ,  H04N19/142

CPC分类号： H04N19/117 ,  H04N19/105 ,  H04N19/124 ,  H04N19/14 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/51 ,  H04N19/142

摘要： Aspects of the disclosure provide methods and apparatuses for video processing. In some examples, an apparatus for video processing includes processing circuitry. The processing circuitry determines one or more parameters of a temporal filter based on video contents in an uncompressed video. The uncompressed video includes a sequence of frames. Then, the processing circuitry applies the temporal filter with the determined parameter on a first pixel in a first frame to determine a filtered value for the first pixel based on the first pixel in the first frame and second pixels in a group of reference frames for the first frame. Further, the processing circuitry encodes a filtered video that includes the filtered value for the first pixel in the first frame to generate a coded video bitstream that carries the filtered video.

公开(公告)号：US11930159B2

公开(公告)日：2024-03-12

申请号：US16699243

申请日：2019-11-29

申请人： Intel Corporation

发明人： Jason Tanner ,  Zhijun Lei

IPC分类号： H04N19/105 ,  H04N19/119 ,  H04N19/142 ,  H04N19/176 ,  H04N19/426

CPC分类号： H04N19/105 ,  H04N19/119 ,  H04N19/142 ,  H04N19/176 ,  H04N19/427

摘要： Methods, articles, and systems of video coding use intra block copying with hash-based searches.

公开(公告)号：US11812119B2

公开(公告)日：2023-11-07

申请号：US17158531

申请日：2021-01-26

申请人： Comcast Cable Communications, LLC

发明人： Srinath V. Ramaswamy

IPC分类号： H04N7/025 ,  H04N21/845 ,  H04N5/14 ,  H04N21/2662 ,  H04N21/234 ,  H04N21/81 ,  G11B27/031 ,  H04N19/132 ,  H04N19/142 ,  H04N19/48 ,  H04N19/87 ,  H04N19/40 ,  H04N19/625

CPC分类号： H04N21/845 ,  G11B27/031 ,  H04N5/147 ,  H04N19/132 ,  H04N19/142 ,  H04N19/40 ,  H04N19/48 ,  H04N19/625 ,  H04N19/87 ,  H04N21/23418 ,  H04N21/2662 ,  H04N21/812

摘要： The disclosure relates to a method of processing a sequence of image frames to reduce its length. One implementation may involve extracting coefficients (e.g., Discrete Cosine Transform coefficients) from components of individual frames, and comparing the resulting coefficients for sequential frames to identify frames having the least change from a prior frame. Also, scene change values for each frame may be calculated and placed in a sorted list to facilitate identification of frames for removal. Frame removal may be conducted in rounds, where a group of pictures (GOP) may only have one frame removed for any given round.

公开(公告)号：US11792432B2

公开(公告)日：2023-10-17

申请号：US17026781

申请日：2020-09-21

申请人： TENCENT AMERICA LLC

发明人： Byeongdoo Choi ,  Stephan Wenger ,  Shuai Zhao

IPC分类号： H04N19/70 ,  H04N19/142 ,  H04N19/42 ,  H04N19/174 ,  H04N19/172

CPC分类号： H04N19/70 ,  H04N19/142 ,  H04N19/172 ,  H04N19/174 ,  H04N19/42

摘要： A method and apparatus for identifying an Access Unit (AU) boundary in a coded video bitstream comprising: correlating information from at least one field from each of at least two Network Abstraction Layer (NAL) units.

公开(公告)号：US11757963B2

公开(公告)日：2023-09-12

申请号：US17400216

申请日：2021-08-12

申请人： Disney Enterprises, Inc.

发明人： Scott C. Labrozzi ,  William B. May, Jr.

IPC分类号： H04L65/70 ,  H04N19/114 ,  H04N19/142 ,  H04N19/172 ,  H04N19/177 ,  H04L65/80 ,  H04L65/612

CPC分类号： H04L65/70 ,  H04L65/612 ,  H04L65/80 ,  H04N19/114 ,  H04N19/142 ,  H04N19/172 ,  H04N19/177

摘要： Embodiments provide for a system, comprising a plurality of encoders configured to generate a plurality of variant streams, and a cross-variant Instantaneous Decoder Refresh (IDR) identifier configured to inspect the plurality of variant streams, identify IDR frames in each of the plurality of variant streams, determine which IDR frames correspond to cross-variant boundaries, and demarcate the IDR frames corresponding to cross-variant boundaries.

公开(公告)号：US11736701B2

公开(公告)日：2023-08-22

申请号：US17219720

申请日：2021-03-31

申请人： Microsoft Technology Licensing, LLC

发明人： Bin Li ,  Ji-Zheng Xu

IPC分类号： H04N19/176 ,  H04N19/142 ,  H04N19/14 ,  H04N19/503 ,  H04N19/154

CPC分类号： H04N19/176 ,  H04N19/14 ,  H04N19/142 ,  H04N19/154 ,  H04N19/503

摘要： Innovations in encoder-side decisions that use the results of hash-based block matching are presented. For example, some of the innovations relate to ways of building hash tables that include some (but not all) uniform blocks. Other innovations relate to ways of determining motion vector resolution based on results of hash-based block matching. Still other innovations relate to scene change detection, including long-term reference picture selection and picture quality determination during encoding.

公开(公告)号：US20230209070A1

公开(公告)日：2023-06-29

申请号：US18179166

申请日：2023-03-06

申请人： Microsoft Technology Licensing, LLC

发明人： Gary J. Sullivan ,  You Zhou ,  Chih-Lung Lin

IPC分类号： H04N19/174 ,  H04N19/139 ,  H04N19/147 ,  H04N19/109 ,  H04N19/136 ,  H04N19/177 ,  H04N19/17 ,  H04N19/179 ,  H04N19/105 ,  H04N19/52 ,  H04N19/142 ,  H04N19/513

CPC分类号： H04N19/174 ,  H04N19/139 ,  H04N19/147 ,  H04N19/109 ,  H04N19/136 ,  H04N19/177 ,  H04N19/17 ,  H04N19/179 ,  H04N19/105 ,  H04N19/52 ,  H04N19/142 ,  H04N19/521 ,  H04N19/523

摘要： Approaches to selection of motion vector (“MV”) precision during video encoding are presented. These approaches can facilitate compression that is effective in terms of rate-distortion performance and/or computational efficiency. For example, a video encoder determines an MV precision for a unit of video from among multiple MV precisions, which include one or more fractional-sample MV precisions and integer-sample MV precision. The video encoder can identify a set of MV values having a fractional-sample MV precision, then select the MV precision for the unit based at least in part on prevalence of MV values (within the set) having a fractional part of zero. Or, the video encoder can perform rate-distortion analysis, where the rate-distortion analysis is biased towards the integer-sample MV precision. Or, the video encoder can collect information about the video and select the MV precision for the unit based at least in part on the collected information.

公开(公告)号：US11638016B2

公开(公告)日：2023-04-25

申请号：US17366887

申请日：2021-07-02

申请人： Microsoft Technology Licensing, LLC

发明人： Gary J. Sullivan ,  You Zhou ,  Chih-Lung Lin

IPC分类号： H04N19/174 ,  H04N19/139 ,  H04N19/147 ,  H04N19/17 ,  H04N19/523 ,  H04N19/109 ,  H04N19/136 ,  H04N19/177 ,  H04N19/179 ,  H04N19/105 ,  H04N19/52 ,  H04N19/142 ,  H04N19/513

摘要： Approaches to selection of motion vector (“MV”) precision during video encoding are presented. These approaches can facilitate compression that is effective in terms of rate-distortion performance and/or computational efficiency. For example, a video encoder determines an MV precision for a unit of video from among multiple MV precisions, which include one or more fractional-sample MV precisions and integer-sample MV precision. The video encoder can identify a set of MV values having a fractional-sample MV precision, then select the MV precision for the unit based at least in part on prevalence of MV values (within the set) having a fractional part of zero. Or, the video encoder can perform rate-distortion analysis, where the rate-distortion analysis is biased towards the integer-sample MV precision. Or, the video encoder can collect information about the video and select the MV precision for the unit based at least in part on the collected information.

公开(公告)号：US20230121046A1

公开(公告)日：2023-04-20

申请号：US17914075

申请日：2021-03-24

申请人： SONY INTERACTIVE ENTERTAINMENT INC.

发明人： Katsushi OTSUKA

IPC分类号： H04N19/115 ,  G06T17/00 ,  H04N19/132 ,  H04N19/142 ,  H04N19/17

摘要： Provided are a transmission device, a transmission method, and a program capable of performing rate control suitable for an image quality priority image. A basic parameter value decision section (28a) decides, for a frame image that is not an image quality priority image, values of parameters used for encoding an encoding unit that is a part or whole of the frame image, by applying the difference between a control amount and a target value to a predetermined control rule. An image quality priority parameter value decision section (28b) decides, for the frame image that is the image quality priority image, values by which the data size of the generated image data becomes larger than those decided by applying the difference between the control amount and the target value to the predetermined control rule as the values of the parameters used for the encoding unit of the frame image.