公开(公告)号：US11632552B2

公开(公告)日：2023-04-18

申请号：US17350303

申请日：2021-06-17

申请人： Beijing Baidu Netcom Science and Technology Co., Ltd.

发明人： Le Shi ,  Wenpeng Ding

IPC分类号： H04N19/136 ,  H04N19/172 ,  H04N19/114

摘要： A method and apparatus for coding a video, device and medium are provided. An implementation of the method include: determining a first video frame structure and a second video frame structure based on a pre-set threshold for a B-frame number; determining a target video frame structure based on the first video frame structure, the second video frame structure, and a pre-set condition; and coding video frames in a to-be-coded video frame sequence according to the target video frame structure.

公开(公告)号：US20230071057A1

公开(公告)日：2023-03-09

申请号：US17930524

申请日：2022-09-08

申请人： Comcast Cable Communications, LLC

发明人： Dan GROIS ,  Alexander GILADI

IPC分类号： H04N19/114 ,  H04N19/107 ,  H04N19/12 ,  H04N19/177 ,  G06T7/13 ,  H04N19/172 ,  H04N19/14

摘要： A spatial complexity and a temporal complexity associated with one or more frames of media content may be determined. Based on the spatial complexity and the temporal complexity of the media content, a Group of Picture (GOP) size for the one or more frames of the media content may be determined. The GOP size may be inversely proportional to the spatial complexity and the temporal complexity of the one or more frames of media content. Certain frames of the media content may be arranged in a different GOP size as compared to one or more other frames of the media content. By varying the GOP size of the plurality of frames of the media content, the bitrate required to transmit the media content may be decreased without decreasing or substantially decreasing the overall quality of the media content.

公开(公告)号：US11470310B2

公开(公告)日：2022-10-11

申请号：US16456749

申请日：2019-06-28

申请人： Comcast Cable Communications, LLC

发明人： Dan Grois ,  Alexander Giladi

IPC分类号： H04N19/114 ,  H04N19/107 ,  H04N19/12 ,  H04N19/177 ,  G06T7/13 ,  H04N19/172 ,  H04N19/14

摘要： A spatial complexity and a temporal complexity associated with one or more frames of media content may be determined. Based on the spatial complexity and the temporal complexity of the media content, a Group of Picture (GOP) size for the one or more frames of the media content may be determined. The GOP size may be inversely proportional to the spatial complexity and the temporal complexity of the one or more frames of media content. Certain frames of the media content may be arranged in a different GOP size as compared to one or more other frames of the media content. By varying the GOP size of the plurality of frames of the media content, the bitrate required to transmit the media content may be decreased without decreasing or substantially decreasing the overall quality of the media content.

公开(公告)号：US20220224914A1

公开(公告)日：2022-07-14

申请号：US17466797

申请日：2021-09-03

申请人： WaveOne Inc.

发明人： Alexander G. Anderson ,  Oren Rippel ,  Kedar Tatwawadi ,  Sanjay Nair ,  Craig Lytle ,  Hervé Guihot ,  Brandon Sprague ,  Lubomir Bourdev

IPC分类号： H04N19/149 ,  H04N19/65 ,  H04N19/172 ,  H04N19/166 ,  H04N19/114 ,  G06N3/04

摘要： A compression system trains a machine-learned compression model that includes components for an encoder and decoder. In one embodiment, the compression model is trained to receive parameter information on how a target frame should be encoded with respect to one or more encoding parameters, and encodes the target frame according to the respective values of the encoding parameters for the target frame. In particular, the encoder of the compression model includes at least an encoding system configured to encode a target frame and generate compressed code that can be transmitted by, for example, a sender system to a receiver system. The decoder of the compression model includes a decoding system trained in conjunction with the encoding system. The decoding system is configured to receive the compressed code for the target frame and reconstruct the target frame for the receiver system.

公开(公告)号：US11323701B2

公开(公告)日：2022-05-03

申请号：US16578237

申请日：2019-09-20

申请人： Panopto, Inc.

发明人： Eric Burns

IPC分类号： H04N19/114 ,  H04N19/177 ,  H04N19/136 ,  H04N19/40

摘要： Systems and methods are provided encoding a video. Video data is captured. The video data is stored in a group of pictures format, where the group of pictures format comprises a plurality of GOP files, each GOP file including exactly one group of pictures unit. The video data is encoded into a prespecified format. Encoding includes accessing the GOP files containing the video data in the group of pictures format, and encoding the video data into the prespecified format using the GOP files to generate an encoded video.

公开(公告)号：US11310489B2

公开(公告)日：2022-04-19

申请号：US17067645

申请日：2020-10-10

申请人： HUAWEI TECHNOLOGIES CO., LTD.

发明人： Jie Xiong ,  Youqing Yang ,  Yihong Huang

IPC分类号： H04N7/12 ,  H04N17/04 ,  H04N21/44 ,  H04N19/169 ,  H04N19/114 ,  H04N19/154 ,  H04N17/00

摘要： The present invention discloses a method, an apparatus, and a system for implementing video quality assessment. When video quality is assessed, a proportion of a damaged data caused by packet loss in a video frame in which the damaged data is located is considered, and other factors are also considered, such as a position of the damaged data in the video frame and impact of a scene in which the video frame is located on the video frame or a video frame located after the video frame. Therefore, accuracy of quality assessment is higher.

公开(公告)号：US20220030325A1

公开(公告)日：2022-01-27

申请号：US17468603

申请日：2021-09-07

申请人： WowYow, Inc.

发明人： Adam Boskovich

IPC分类号： H04N21/81 ,  H04N21/2668 ,  G06F16/432 ,  G06K9/00 ,  H04N19/114 ,  H04N21/858

摘要： Methods and apparatus for providing attribute-based search of media assets such as video and audio assets, and associated augmented reality functions including dynamic provision of relevant secondary content relating to the identified attribute(s). In one embodiment, media or content assets are ingested into a processing system and processed according to one or more attribute detection, identification, and characterization algorithms. Attributes detected may include for example the presence of tangible items such as clothing or chattels, particular persons such as celebrities, and/or certain contexts such as sporting activities and musical performances, as rendered within the media asset. In one implementation, the characterized assets are provided a unique ID, and stored so as to permit cross-correlation based on, e.g., the identified and characterized attributes. Secondary content (e.g., advertising or promotional content) is correlated to each identified asset, and dynamically served upon a user providing some threshold level of interaction with the attribute.

公开(公告)号：US20210306592A1

公开(公告)日：2021-09-30

申请号：US17257489

申请日：2018-07-03

申请人： LG ELECTRONICS INC.

发明人： Younghwan KWON ,  Gunshik SHIN ,  Jinsool LEE ,  Jeongho WOO ,  Sungbum JOO

IPC分类号： H04N5/92 ,  H04N21/2343 ,  H04N19/114

摘要： In order to address problems such as an increase in costs incurred when obtaining a slow motion and a time limit for video recording, an image processing apparatus is provided, the image processing apparatus comprising: an image sensor for obtaining a plurality of frames of an image which is to be recorded; an image signal processing unit for receiving the obtained plurality of frames from the image sensor and post-processing the received plurality of frames; an encoder for receiving, from the image signal processor, and encoding a first group of frames which are a part of the post-processed plurality of frames; and a buffer storage unit for receiving, from the image signal processor, and storing a second group of frames which are another part of the post-processed plurality of frames, wherein the encoder receives the second group of frames from the buffer storage unit and performs encoding so as to generate an image including the first group of frames and the second group of frames.

公开(公告)号：US20210120061A1

公开(公告)日：2021-04-22

申请号：US16654761

申请日：2019-10-16

申请人： Disney Enterprises, Inc.

发明人： Scott C. LABROZZI ,  William B. MAY, JR.

IPC分类号： H04L29/06 ,  H04N19/114 ,  H04N19/177 ,  H04N19/172 ,  H04N19/142

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：US10944970B2

公开(公告)日：2021-03-09

申请号：US16450705

申请日：2019-06-24

申请人： Tencent Technology (Shenzhen) Company Limited

发明人： Xunan Mao

IPC分类号： H04N19/126 ,  H04N19/577 ,  H04N19/114 ,  H04N19/573

摘要： A video coding method can include receiving, by processing circuitry of a coding device, a current picture in a group of pictures (GOP) of a layered coding structure in video sequence. The current picture can have two reference pictures. A current layer of the current picture in the layered coding structure can be determined. A current quantization parameter (QP) offset of the current picture can be determined according to the current layer of the current picture. Reference QPs corresponding to the two reference pictures of the current picture can be determined. A current QP of the current picture can be determined according to the reference QPs and the current QP offset. The current picture can be coded according to the current QP.