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公开(公告)号：US11438099B2
公开(公告)日：2022-09-06
申请号：US16821986
申请日：2020-03-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Chen Zheng , Liang Ma , Jie Xiong , Xin Zeng , Xiaojian Liu , Yuejun Wei
Abstract: This application discloses an information processing method. A communication device obtains an input sequence. The input sequence has a quantity B of bits. The communication devices transforms the input sequence into one or more code blocks. The communication device encodes each of the code blocks, to obtain one or more encoded code blocks. Each of the code blocks has a code block length less than or equal to a maximum code block length. Each of the code blocks includes a segment of the input sequence, one or more cyclic redundancy check (CRC) bits corresponding to the segment of the input sequence, and one or more filler bits. The encoded code blocks can meet various channel coding requirements.
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公开(公告)号：US11363346B2
公开(公告)日：2022-06-14
申请号：US17139247
申请日：2020-12-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jie Xiong , Youqing Yang , Qiujie Fu
IPC: G06F15/16 , H04N21/647 , H04N21/24 , H04N21/643 , H04N17/00 , H04N21/6437 , H04N21/6405 , H04L65/611 , H04L65/612 , H04L65/65 , H04L65/80 , H04N21/234 , H04N21/44
Abstract: A video service quality assessment method and apparatus, where a monitoring device is configured to: obtain an identifier of a to-be-monitored channel, an identifier of to-be-monitored user equipment, and configuration information of a video service transmission system; obtain a multicast video stream of the to-be-monitored channel based on the identifier of the to-be-monitored channel; obtain a retransmitted video stream based on the identifier of the to-be-monitored channel, the identifier of the to-be-monitored user equipment, and the configuration information of the video service transmission system; determine a to-be-assessed video stream based on the multicast video stream and the retransmitted video stream; parse the to-be-assessed video stream; and obtain an assessment result based on a parsing result and the configuration information of the video service transmission system.
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公开(公告)号：US10917643B2
公开(公告)日：2021-02-09
申请号：US16284664
申请日：2019-02-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jie Xiong , Youqing Yang , Yihong Huang
IPC: H04N19/114 , H04N19/177 , H04N19/142 , G06K9/00 , H04N19/48 , H04N19/146 , H04N19/159 , G06T7/20 , H04N19/87
Abstract: A method and an apparatus for detecting a scene change frame in a video and a system, where when a scene change frame in the video is detected, whether a maximum P frame (Pmax) in all P frames in a group of pictures (GOP) of the video is a scene change frame is determined based on a relative relationship between a size Pkmax of Pmax and a median or an average of sizes of a plurality of I frames between Pmax and a scene change frame closest to Pmax and before Pmax, or a relative relationship between Pkmax and a median or an average of sizes of a plurality of P frames in the GOP to detect a scene change frame in the P frames such that missed detection of a scene change frame is effectively reduced.
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公开(公告)号：US10834383B2
公开(公告)日：2020-11-10
申请号：US16283728
申请日：2019-02-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jie Xiong , Youqing Yang , Yihong Huang
IPC: H04N7/12 , H04N17/04 , H04N21/44 , H04N19/114 , H04N19/154 , H04N17/00
Abstract: 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.
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公开(公告)号：US20190173499A1
公开(公告)日：2019-06-06
申请号：US16262921
申请日：2019-01-31
Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
Inventor： Chen Zheng , Liang Ma , Jie Xiong , Xin Zeng , Xiaojian Liu , Yuejun Wei
Abstract: This application discloses an information processing method. A communication device obtains an input sequence. The input sequence has a quantity B of information bits. The communication devices transforms the input sequence into one or more code blocks. The communication device encodes each of the code blocks individually, to obtain one or more encoded code blocks. Each of the code blocks has a code block length less than or equal to a maximum code block length. Each of the code blocks includes a segment of the input sequence and may include one or more cyclic redundancy check (CRC) bits corresponding to the segment of the input sequence. The encoded code blocks can meet various channel coding requirements.
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Patent Agency Ranking
公开(公告)号：US11212563B2
公开(公告)日：2021-12-28
申请号：US17197156
申请日：2021-03-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jie Xiong , Jinhui Zhang , Ji Li , Zhigui Chen
IPC: H04N21/236 , H04N21/234 , H04N21/438 , H04N21/44
Abstract: A video stream switching method includes receiving, by transmission device, a plurality of video streams of a first video and a plurality of video streams of a second video, sending the video streams of the first video through target output ports respectively corresponding to the video streams of the first video, after receiving a switching instruction, determining switching reference information of a reference end-of-frame packet of each video stream of the first video and the second video, determining switching reference information of a switching packet of the video stream, and switching from the video streams of the first video to the video streams of the second video based on the switching reference information of the switching packet of each video stream.
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公开(公告)号：US20210377458A1
公开(公告)日：2021-12-02
申请号：US17402110
申请日：2021-08-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jie Xiong , Jinhui Zhang , Chao Liu
IPC: H04N5/268 , G10L25/57 , H04N21/43 , H04N21/242 , H04N21/8547
Abstract: A switching device determines a video parameter value of a switching point of a first video stream, and determines a video parameter value of a switching point of a second video stream. The video parameter value includes a timestamp and/or a sequence number. The switching device determines an audio parameter value of a switching point of a first audio stream based on a timestamp of the switching point of the first video stream, and determines an audio parameter value of a switching point of a second audio stream based on a timestamp of the switching point of the second video stream. The audio parameter value includes a timestamp and/or a sequence number. The switching device performs switching based on determined switching points.
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公开(公告)号：US11006185B2
公开(公告)日：2021-05-11
申请号：US16221011
申请日：2018-12-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jie Xiong , Youqing Yang , Qiujie Fu
IPC: G06F15/16 , H04N21/647 , H04N21/24 , H04N21/643 , H04N17/00 , H04N21/6437 , H04N21/6405 , H04L29/06 , H04N21/234 , H04N21/44
Abstract: A video service quality assessment method and apparatus are provided to resolve a prior-art problem of relatively low accuracy of an assessment result. A monitoring device obtains an identifier of a to-be-monitored channel, an identifier of to-be-monitored user equipment, and configuration information of a video service transmission system; obtains a multicast video stream of the to-be-monitored channel based on the identifier of the to-be-monitored channel; obtains a retransmitted video stream based on the identifier of the to-be-monitored channel, the identifier of the to-be-monitored user equipment, and the configuration information of the video service transmission system; determines a to-be-assessed video stream based on the multicast video stream and the retransmitted video stream; and parses the to-be-assessed video stream, and obtains an assessment result based on a parsing result and the configuration information of the video service transmission system.
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公开(公告)号：US20210029348A1
公开(公告)日：2021-01-28
申请号：US17067645
申请日：2020-10-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jie Xiong , Youqing Yang , Yihong Huang
IPC: H04N17/04 , H04N21/44 , H04N19/114 , H04N19/154 , H04N17/00
Abstract: 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.
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公开(公告)号：US20190260999A1
公开(公告)日：2019-08-22
申请号：US16284664
申请日：2019-02-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jie Xiong , Youqing Yang , Yihong Huang
IPC: H04N19/142 , G06K9/00 , H04N19/114 , H04N19/177
Abstract: A method and an apparatus for detecting a scene change frame in a video and a system, where when a scene change frame in the video is detected, whether a maximum P frame (Pmax) in all P frames in a group of pictures (GOP) of the video is a scene change frame is determined based on a relative relationship between a size Pkmax of Pmax and a median or an average of sizes of a plurality of I frames between Pmax and a scene change frame closest to Pmax and before Pmax, or a relative relationship between Pkmax and a median or an average of sizes of a plurality of P frames in the GOP to detect a scene change frame in the P frames such that missed detection of a scene change frame is effectively reduced.
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