公开(公告)号：US08908047B2

公开(公告)日：2014-12-09

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 ,  H04N17/02

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.

公开(公告)号：US11800095B2

公开(公告)日：2023-10-24

申请号：US16918301

申请日：2020-07-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huameng Fang ,  Peiyun Di ,  Fuzheng Yang

IPC: H04N19/117 ,  H04N19/174 ,  H04N19/70

CPC classification number: H04N19/117 ,  H04N19/174 ,  H04N19/70

Abstract: A video picture encoding and decoding method, including obtaining a primary sub-region bitstream corresponding to a target sub-picture of a panoramic picture, where the primary sub-region bitstream includes N secondary sub-region bitstreams, and N is a positive integer, parsing the primary sub-region bitstream to obtain a reconstructed picture, performing cross-sub-region-boundary out-loop filtering on the reconstructed picture when an out-loop filtering identifier instructs to perform cross-sub-region-boundary out-loop filtering on the reconstructed picture, to obtain a filtered reconstructed picture, and adjusting a location of at least one of N sub-regions in the filtered reconstructed picture to obtain a picture having no sub-region boundary.

公开(公告)号：US20210014558A1

公开(公告)日：2021-01-14

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 ,  H04N21/84 ,  H04N21/845 ,  H04N21/6587 ,  H04N21/4402

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：US20180082704A1

公开(公告)日：2018-03-22

申请号：US15829098

申请日：2017-12-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Xiao ,  Suhua Li ,  Fuzheng Yang

IPC: G10L25/60 ,  G10L25/21 ,  G10L25/18 ,  G10L25/30

CPC classification number: G10L25/60 ,  G10L25/18 ,  G10L25/21 ,  G10L25/30

Abstract: A voice quality evaluation method includes obtaining a time envelope of a voice signal. The method includes performing time-to-frequency conversion on the time envelope to obtain an envelope spectrum. The method includes performing feature extraction on the envelope spectrum to obtain a feature parameter. The method includes performing voice quality evaluation in voice communications according to the feature parameter to obtain a first voice quality parameter of the voice signal. The method includes calculating a second voice quality parameter of the voice signal by using a network parameter evaluation model. The method includes performing a comprehensive analysis according to the first voice quality parameter and the second voice quality parameter to obtain a quality evaluation parameter of the voice signal that is input in the band.

公开(公告)号：US20200336740A1

公开(公告)日：2020-10-22

申请号：US16918301

申请日：2020-07-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huameng Fang ,  Peiyun Di ,  Fuzheng Yang

IPC: H04N19/117 ,  H04N19/174

Abstract: A video picture encoding and decoding method, including obtaining a primary sub-region bitstream corresponding to a target sub-picture of a panoramic picture, where the primary sub-region bitstream includes N secondary sub-region bitstreams, and N is a positive integer, parsing the primary sub-region bitstream to obtain a reconstructed picture, performing cross-sub-region-boundary out-loop filtering on the reconstructed picture when an out-loop filtering identifier instructs to perform cross-sub-region-boundary out-loop filtering on the reconstructed picture, to obtain a filtered reconstructed picture, and adjusting a location of at least one of N sub-regions in the filtered reconstructed picture to obtain a picture having no sub-region boundary.

公开(公告)号：US10284712B2

公开(公告)日：2019-05-07

申请号：US15248079

申请日：2016-08-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fuzheng Yang ,  Xuemin Li ,  Liangliang Jiang ,  Wei Xiao

IPC: H04M3/22 ,  H04M7/00 ,  H04L12/26 ,  G10L25/69 ,  G10L19/005

Abstract: A voice quality evaluation method, apparatus, and system comprises an obtained voice data packet is parsed, and a frame content characteristic of the data packet is determined according to a parse result, for example, the frame content characteristic is a silence frame and a voice frame. Then, a voice sequence is divided into statements according to the determined frame content characteristic, and the statements are divided into multiple frame loss events; after non-voice parameters are extracted according to the frame loss events, voice quality of each statement is evaluated according to a preset voice quality evaluation model and according to the non-voice parameters. Finally, voice quality of the entire voice sequence is evaluated according to the voice quality of each statement. By using this solution, prediction precision can be improved significantly, and accuracy of an evaluation result can be improved.

公开(公告)号：US10045051B2

公开(公告)日：2018-08-07

申请号：US14539423

申请日：2014-11-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lina Sun ,  Shan Gao ,  Fuzheng Yang

IPC: H04N19/86 ,  H04N19/85 ,  H04N19/124 ,  H04N19/154 ,  H04N17/00

Abstract: Embodiments of the present invention provide a method and an apparatus for assessing video quality. The method includes: determining an actual quantization parameter and a critical quantization parameter of the target video according to a target video, where the critical quantization parameter is a maximum quantization parameter of the target video in a case in which a distortion is not evidently identifiable by human eyes; and determining quality of the target video according to the actual quantization parameter and the critical quantization parameter. According to the method and apparatus of the present invention, a critical quantization parameter of a target video is determined, and the actual quantization parameter is compared with the critical quantization parameter, which can accurately determine whether subjective quality of the target video changes strictly monotonically relative to the used actual quantization parameter, so that the video quality can be assessed accurately.

公开(公告)号：US10530675B2

公开(公告)日：2020-01-07

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

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：US20160366274A1

公开(公告)日：2016-12-15

申请号：US15248079

申请日：2016-08-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fuzheng Yang ,  Xuemin Li ,  Liangliang Jiang ,  Wei Xiao

IPC: H04M3/22 ,  H04L12/26 ,  H04M7/00

CPC classification number: H04M3/22 ,  G10L19/005 ,  G10L25/69 ,  H04L43/08 ,  H04M3/2236 ,  H04M7/006

Abstract: A voice quality evaluation method, apparatus, and system comprises an obtained voice data packet is parsed, and a frame content characteristic of the data packet is determined according to a parse result, for example, the frame content characteristic is a silence frame and a voice frame. Then, a voice sequence is divided into statements according to the determined frame content characteristic, and the statements are divided into multiple frame loss events; after non-voice parameters are extracted according to the frame loss events, voice quality of each statement is evaluated according to a preset voice quality evaluation model and according to the non-voice parameters. Finally, voice quality of the entire voice sequence is evaluated according to the voice quality of each statement. By using this solution, prediction precision can be improved significantly, and accuracy of an evaluation result can be improved.

Abstract translation: 语音质量评估方法，装置和系统包括所获得的语音数据分组被解析，并且根据解析结果确定数据分组的帧内容特征，例如，帧内容特征是静默帧和语音 帧。 然后，根据确定的帧内容特征将语音序列划分成语句，并将语句划分为多个帧丢失事件; 在根据帧丢失事件提取非语音参数后，根据预设的语音质量评估模型和非语音参数对每个语句的语音质量进行评估。 最后，根据每个语句的语音质量来评估整个语音序列的语音质量。 通过使用该解决方案，可以显着提高预测精度，可以提高评价结果的准确性。

公开(公告)号：US20150117653A1

公开(公告)日：2015-04-30

申请号：US14586052

申请日：2014-12-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shan Gao ,  Lina Sun ,  Fuzheng Yang

IPC: G10L25/00

CPC classification number: G10L25/00 ,  G10L25/69 ,  H04L41/5067 ,  H04L41/509 ,  H04L43/0829

Abstract: Embodiments of the present invention provide a method and an apparatus for evaluating audio stream quality, where the method for evaluating audio stream quality includes: determining at least one non-silence audio data packet in a to-be-evaluated audio stream, where the to-be-evaluated audio stream includes at least one non-silence audio data packet, and each non-silence audio data packet includes at least one non-silence audio frame; and evaluating the at least one non-silence audio data packet in the to-be-evaluated audio stream to generate audio quality evaluation information. The method and the apparatus for evaluating audio stream quality provided by the embodiments of the present invention can avoid impact of a silence part on evaluation of audio quality, thereby improving accuracy of evaluating audio stream quality.

Abstract translation: 本发明的实施例提供了一种用于评估音频流质量的方法和装置，其中用于评估音频流质量的方法包括：确定待评估音频流中的至少一个非静音音频数据分组，其中， 被评估的音频流包括至少一个非静音音频数据分组，并且每个非静音音频数据分组包括至少一个非静音音频帧; 以及评估待评估音频流中的至少一个非静音音频数据分组以产生音频质量评估信息。 由本发明的实施例提供的用于评估音频流质量的方法和装置可以避免静音部分对音频质量评估的影响，从而提高评估音频流质量的准确性。