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1.发明授权公开(公告)号：US10735029B2
公开(公告)日：2020-08-04
申请号：US15955315
申请日：2018-04-17
Inventor： Yongfang Shi , Anlin Gao , Jing Lv , Jingchang Chen , Jian He , Chenchen Gu , Xunan Mao , Haibo Deng , Licai Guo , Chao Dai , Xun Zhang
IPC: H03M13/00 , H04L1/00 , H04N19/00 , H03M13/35 , H04N7/14 , H04N21/637 , H04N19/46 , H04N21/238 , H04N19/67 , H04L29/06 , H04N7/24 , H04N21/6375 , H04N19/172 , H04N19/115 , H04N19/166 , H04N19/169 , H03M13/15
Abstract: The application discloses video data redundancy control methods and apparatuses. Video packet redundancy control information is determined according to packet loss at a reception apparatus. The video packet redundancy control information is received from the reception apparatus. Video data is encoded according to the video packet redundancy control information to obtain encoded video data of a plurality of frames by a transmission apparatus. A frame-level redundancy budget is allocated for one of the plurality of frames according to the video packet redundancy control information. Further, the one of the plurality of frames is packetized according to the frame-level redundancy budget to generate a packetized frame. Redundancy coding is performed on the packetized frame to generate video packets including data packets and redundant packets for transmission to the reception apparatus.
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公开(公告)号：US11363263B2
公开(公告)日：2022-06-14
申请号：US16400334
申请日：2019-05-01
Inventor： Xunan Mao , Yaoyao Guo , Chenchen Gu , Xinwei Gao , Licai Guo , Yongfang Shi , Anlin Gao , Haibo Deng , Jing Lv
IPC: H04N19/115 , H04N19/15 , H04N19/177 , H04N19/146 , H04N19/114 , H04N19/172
Abstract: A data coding method includes determining a length of a current first bit-rate-control-unit data frame in to-be-transmitted data, and the length of the first bit-rate-control-unit data frame is less than or equal to a length of a group of pictures (GOP) data frame. The method also includes determining a first target bit rate of the first bit-rate-control-unit data frame according to the length of the first bit-rate-control-unit data frame, a target bit rate of the to-be-transmitted data, and a frame rate of the to-be-transmitted data and, when a first difference value between a real bit rate of a second bit-rate-control-unit data frame and a second target bit rate of the second bit-rate-control-unit data frame is greater than zero, adjusting the first target bit rate according to the first difference value, and coding the first bit-rate-control-unit data frame according to the adjusted first target bit rate.
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公开(公告)号：US20200382781A1
公开(公告)日：2020-12-03
申请号：US16996443
申请日：2020-08-18
Inventor： Xunan MAO , Licai Guo , Yongfang Shi , Anlin Gao , Xinwei Gao , Tao Zhang , Haibo Deng , Chenchen GU , Jing Lv
IPC: H04N19/124 , H04N19/172 , H04N19/132
Abstract: In a video encoding method, a to-be-encoded video is obtained. The video includes at least two video frames arranged in sequence. A quantization parameter and a quantization parameter threshold of an ith video frame is calculated, where i is a positive integer greater than or equal to 2. A coding resolution of the ith video frame is determined according to the quantization parameter and the quantization parameter threshold. The coding resolution is a first coding resolution in a case that the ith video frame is sampled, and the coding resolution is a second coding resolution in a case that the ith video frame is downsampled. Then the ith video frame is encoded at the coding resolution.
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公开(公告)号：US11388403B2
公开(公告)日：2022-07-12
申请号：US16996443
申请日：2020-08-18
Inventor： Xunan Mao , Licai Guo , Yongfang Shi , Anlin Gao , Xinwei Gao , Tao Zhang , Haibo Deng , Chenchen Gu , Jing Lv
IPC: H04N19/124 , H04N19/132 , H04N19/172
Abstract: In a video encoding method, a to-be-encoded video is obtained. The video includes at least two video frames arranged in sequence. A quantization parameter and a quantization parameter threshold of an ith video frame is calculated, where i is a positive integer greater than or equal to 2. A coding resolution of the ith video frame is determined according to the quantization parameter and the quantization parameter threshold. The coding resolution is a first coding resolution in a case that the ith video frame is sampled, and the coding resolution is a second coding resolution in a case that the ith video frame is downsampled. Then the ith video frame is encoded at the coding resolution.
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公开(公告)号：US10721466B2
公开(公告)日：2020-07-21
申请号：US16392151
申请日：2019-04-23
Inventor： Xu Nan Mao , Xin Wei Gao , Li Cai Guo , Yong Fang Shi , An Lin Gao , Haibo Deng , Chen Chen Gu , Jing Lv
IPC: H04N19/105 , H04N19/124 , H04N19/132 , H04N19/172 , H04N19/139
Abstract: A video encoding method is provided. The video encoding method includes: obtaining a to-be-coded video frame; determining a current encoding mode according to current coding information and/or image feature information of the to-be-coded video frame; processing the to-be-coded video frame according to the current encoding mode to generate a current coded video frame; obtaining a current reference frame corresponding to the current coded video frame based on the current coded video frame being an inter frame; obtaining a corresponding processing reference frame according to resolution values of the current reference frame and the current coded video frame; and encoding the current coded video frame according to the processing reference frame to generate first coded data.
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Patent Agency Ranking
公开(公告)号：US20200304587A1
公开(公告)日：2020-09-24
申请号：US16894579
申请日：2020-06-05
Inventor： Licai GUO , Xunan Mao , Haibo Deng , Xinwei Gao , Chenchen Gu , Jing Lv
IPC: H04L29/08 , H04L29/06 , H04N19/14 , H04N19/154 , H04N19/124
Abstract: This application relates to a picture sharing method, a computer device, and a storage medium. The method includes: receiving a picture compressed in a first compression manner; obtaining characteristic information of the picture; compressing the picture in a second compression manner in a case that the characteristic information meets a compression trigger condition, to obtain a compressed picture; receiving a picture download request for the picture, wherein the second compression manner has a higher compression ratio than the first compression manner; and returning the compressed picture in response to the picture download request. The solutions of this application reduce a network bandwidth occupied in a picture feedback process.
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公开(公告)号：US10467734B2
公开(公告)日：2019-11-05
申请号：US15709340
申请日：2017-09-19
Inventor： Haibo Deng
Abstract: A real-time video enhancement method performed at a terminal includes: obtaining an average luminance of a current frame of an image; in accordance with a determination that the average luminance is less than the luminance threshold: obtaining a pixel range of an area of interest of the current frame; determining a local enhancement curve of the current frame according to the pixel range of the area of interest of the current frame; determining a first enhancement curve corresponding to the current frame according to the average luminance of the current frame; determining a second enhancement curve of the current frame according to the local enhancement curve of the current frame and the first enhancement curve of the current frame; and adjusting the current frame according to the second enhancement curve.
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公开(公告)号：US11483414B2
公开(公告)日：2022-10-25
申请号：US16894579
申请日：2020-06-05
Inventor： Licai Guo , Xunan Mao , Haibo Deng , Xinwei Gao , Chenchen Gu , Jing Lv
IPC: H04L67/5651 , H04N19/124 , H04N19/14 , H04N19/154 , H04L67/06 , H04N21/2343 , H04N21/2668 , H04L69/04 , H04N21/2743 , H04L9/40 , H04L65/75
Abstract: This application relates to a picture sharing method, a computer device, and a storage medium. The method includes: receiving a picture compressed in a first compression manner; obtaining characteristic information of the picture; compressing the picture in a second compression manner in a case that the characteristic information meets a compression trigger condition, to obtain a compressed picture; receiving a picture download request for the picture, wherein the second compression manner has a higher compression ratio than the first compression manner; and returning the compressed picture in response to the picture download request. The solutions of this application reduce a network bandwidth occupied in a picture feedback process.
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公开(公告)号：US10587874B2
公开(公告)日：2020-03-10
申请号：US15699710
申请日：2017-09-08
Inventor： Haibo Deng
IPC: H04N19/117 , H04N19/80 , H04N19/625 , H04N19/593 , H04N19/52 , H04N19/176 , H04N21/24 , H04N19/14 , H04N19/48 , H04N19/164 , H04N19/85 , G06T5/00 , H04N19/18 , G06T5/10
Abstract: A video denoising method includes: while continuing to receive a video stream, performing multi-stage denoising processing on a respective frame, including: detecting a change in a current network status of a network connection; and, in response to detecting the change in the current network status: adjusting a current value for a predefine flatness threshold for detecting a flat area within the respective frame of the image stream in accordance with the change in the current network status of the network connection; identifying one or more flat areas within the respective image frame in accordance with the predefined flatness threshold; and performing, using a predefined filter, denoising processing on the one or more flat areas that have been identified in accordance with the predefined flatness threshold.
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公开(公告)号：US20180234116A1
公开(公告)日：2018-08-16
申请号：US15955315
申请日：2018-04-17
Inventor： Yongfang SHI , Anlin Gao , Jing Lv , Jingchang Chen , Jian He , Chenchen Gu , Xunan Mao , Haibo Deng , Licai Guo , Chao Dai , Xun Zhang
Abstract: The application discloses video data redundancy control methods and apparatuses. Video packet redundancy control information is determined according to packet loss at a reception apparatus. The video packet redundancy control information is received from the reception apparatus. Video data is encoded according to the video packet redundancy control information to obtain encoded video data of a plurality of frames by a transmission apparatus. A frame-level redundancy budget is allocated for one of the plurality of frames according to the video packet redundancy control information. Further, the one of the plurality of frames is packetized according to the frame-level redundancy budget to generate a packetized frame. Redundancy coding is performed on the packetized frame to generate video packets including data packets and redundant packets for transmission to the reception apparatus.
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