公开(公告)号：US11438645B2

公开(公告)日：2022-09-06

申请号：US17038744

申请日：2020-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuqun Fan ,  Peiyun Di ,  Fuzheng Yang

IPC: H04N21/438 ,  H04N21/4402 ,  H04N21/6587 ,  H04N21/84 ,  H04N21/845

Abstract: A media information processing method includes obtaining media description information, where the media description information includes description information of at least two bitstreams corresponding to a first picture area, any one of the at least two bitstreams has an access point different in time from an access point of another bitstream in the at least two bitstreams, the at least two bitstreams are bitstreams obtained by separately encoding picture content of the first picture subarea, and time periods corresponding to the picture content separately encoded by the at least two bitstreams overlap, and determining, based on the media description information, a to-be-played first target bitstream, where the first target bitstream is one of the at least two bitstreams.

公开(公告)号：US20180054369A1

公开(公告)日：2018-02-22

申请号：US15796035

申请日：2017-10-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shan Gao ,  Fuzheng Yang ,  Ziqiang Xu

IPC: H04L12/26 ,  H04L29/06 ,  H04N17/00

CPC classification number: H04L43/0829 ,  H04L65/60 ,  H04L65/80 ,  H04N17/004

Abstract: A video data quality estimation method and apparatus are provided. The video data quality estimation method includes: obtaining a parameter used to obtain video quality of the video, where the parameter used to obtain video quality of the video includes at least one of a content complexity factor of the video, an average video frame impairment rate of the video, a sequence impairment rate of the video, or a packet-loss event frequency of the video; and obtaining quality of the video according to the parameter used to obtain video quality of the video.

公开(公告)号：US20140232878A1

公开(公告)日：2014-08-21

申请号：US14264978

申请日：2014-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lina Sun ,  Qingpeng Xie ,  Dong Li ,  Fuzheng Yang ,  Liang Zhou ,  Chang Huang

IPC: H04N17/00

CPC classification number: H04N17/00 ,  H04N17/004

Abstract: Embodiments of the present invention disclose a method and an apparatus for obtaining a video quality parameter and an electronic device. The method includes dividing a target video segment into at least one video subsegment, where duration of every video subsegment is at least time perceivable by human eyes; obtaining a video quality parameter of the video subsegment; and processing the video quality parameter of the video subsegment, and obtaining a video quality parameter of the target video segment.

Abstract translation: 本发明的实施例公开了一种用于获得视频质量参数和电子设备的方法和装置。 该方法包括将目标视频片段划分成至少一个视频子片段，其中每个视频子片段的持续时间至少被人眼看到的时间; 获取视频子段的视频质量参数; 并处理视频子段的视频质量参数，并获得目标视频段的视频质量参数。

公开(公告)号：US20140037016A1

公开(公告)日：2014-02-06

申请号：US14050740

申请日：2013-10-10

Applicant: Huawei Technologies Co., LTD.

Inventor： Qingpeng Xie ,  Fuzheng Yang ,  Shuai Wan

IPC: H04N7/26

CPC classification number: H04N19/89 ,  H04L65/80 ,  H04N17/004 ,  H04N19/159 ,  H04N19/61 ,  H04N21/4385 ,  H04N21/44008 ,  H04N21/442

Abstract: A method for evaluating quality of video streams includes: obtaining video streams; obtain coding information of video frames in the video stream; evaluating the single frame quality according to the coding information of the video frames; and evaluating the sequence quality according to the single frame quality evaluation result. An apparatus and a system for evaluating quality are also provided. Thus, the quality of video data packets transmitted in a channel can be predicted accurately, and the single frame quality evaluation result of the video frames can be obtained immediately.

Abstract translation: 一种用于评估视频流的质量的方法包括：获取视频流; 获取视频流中视频帧的编码信息; 根据视频帧的编码信息评估单帧质量; 并根据单帧质量评估结果评估序列质量。 还提供了一种用于评估质量的装置和系统。 因此，可以精确地预测在信道中发送的视频数据分组的质量，并且可以立即获得视频帧的单帧质量评估结果。