公开(公告)号：US20130279585A1

公开(公告)日：2013-10-24

申请号：US13919674

申请日：2013-06-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiu SHEN ,  Qingpeng XIE ,  Dong ZHANG ,  Houqiang LI

IPC: H04N7/36

CPC classification number: H04N19/577 ,  H04N19/503 ,  H04N19/89

Abstract: Embodiments of the present invention disclose a method and an apparatus for detecting frame types. The method includes: detecting play time of each frame; and if the play time of a current frame is less than the maximum play time of received frames, determining the current frame as a bi-directional predicted frame, B-frame. In the technical solutions provided by the embodiments of the present invention, the frame types are determined according to a coding sequence of various frames and comparison between data amounts of various frames received earlier and later, without decoding a payload. Therefore the impact of a reduction factor is eliminated and the frame types can be detected more accurately.

Abstract translation: 本发明的实施例公开了一种用于检测帧类型的方法和装置。 该方法包括：检测每帧的播放时间; 如果当前帧的播放时间小于接收帧的最大播放时间，则将当前帧确定为双向预测帧B帧。 在本发明实施例提供的技术方案中，帧类型根据各种帧的编码顺序以及较早和稍后接收到的各种帧的数据量之间的比较来确定，而无需解码有效载荷。 因此，消除了减小因子的影响，并且可以更准确地检测帧类型。

公开(公告)号：US20210337006A1

公开(公告)日：2021-10-28

申请号：US17372820

申请日：2021-07-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Qingpeng XIE ,  Jiali FU ,  Peiyun DI

IPC: H04L29/06 ,  G06T9/00 ,  G06T3/00 ,  G06T3/40 ,  H04N13/00 ,  G06T15/20

Abstract: Example video data processing methods and apparatus are disclosed. One example method includes receiving a first stream from a client, where the first bitstream is obtained by encoding image data in a specified spatial object. The specified spatial object is part of panoramic space, and a size of the specified spatial object is larger than a size of a spatial object of the panoramic space corresponding to viewport information. The spatial object corresponding to the viewport information is located in the specified spatial object. The client receives a second stream, where the second bitstream is obtained by encoding image data of a panoramic image of the panoramic space with a lower resolution than a resolution of the image data included in the specified spatial object. The client plays the second bitstream and first bitstream.

公开(公告)号：US20190313151A1

公开(公告)日：2019-10-10

申请号：US16450441

申请日：2019-06-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Peiyun DI ,  Qingpeng XIE ,  Jing CONG ,  Hua MING

IPC: H04N21/4402 ,  H04N21/218 ,  H04N21/235 ,  H04N21/435

Abstract: Embodiments of the present invention provide a streaming-technology based video data processing method and apparatus. The method includes: obtaining a media presentation description, where the media presentation description includes index information of video data; obtaining the video data based on the index information of the video data; obtaining tilt information of the video data; and processing the video data based on the tilt information of the video data. According to the video data processing method and apparatus in the embodiments of the present invention, information received by a client includes tilt information of video data, and the client may adjust a presentation manner for the video data based on the tilt information.

公开(公告)号：US20190238933A1

公开(公告)日：2019-08-01

申请号：US16379894

申请日：2019-04-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Peiyun DI ,  Qingpeng XIE

IPC: H04N21/44 ,  H04N21/437 ,  H04N21/434 ,  H04N21/234 ,  H04N21/2343

CPC classification number: H04N21/44012 ,  H04N21/23412 ,  H04N21/2343 ,  H04N21/4348 ,  H04N21/437 ,  H04N21/65

Abstract: The present disclosure disclose example video stream transmission methods and related devices and systems. One example method includes sending, by a client, a target request to a server, where the target request includes information about a corresponding target spatial location of a target spatial object that needs to be presented upon request by the client in a virtual reality VR content component. A target request feedback by which the server responds to the target request is received by the client, where the target request feedback includes information about a multiplex video stream that is obtained by performing preset multiplexing processing on an original video stream corresponding to the target spatial object. Video parsing and presentation based on the information about the multiplex video stream is performed by the client.

公开(公告)号：US20160139498A1

公开(公告)日：2016-05-19

申请号：US14936373

申请日：2015-11-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Maxim KHROMOV ,  Nikolay PETROV ,  Vladislav NIKITIN ,  Qingpeng XIE

IPC: G03B35/26 ,  G03B35/24 ,  G03B35/20

CPC classification number: G03B35/26 ,  G02B27/2214 ,  G02B27/26 ,  G03B35/20 ,  G03B35/24 ,  H04N13/305 ,  H04N13/31

Abstract: Embodiments of the present invention provide an imaging system, including: a first polarization element having a first polarization direction; a second polarization element having a second polarization direction; a third polarization element, where the third polarization element has multiple areas that respectively correspond to multiple pixel positions, each area in the multiple areas consists of a first semi-area and a second semi-area; a first projection device, projecting an image onto the multiple areas by using the first polarization element and based on the multiple pixel positions; and a second projection device, projecting an image onto the multiple areas by using the second polarization element and based on the multiple pixel positions. In the embodiments of the present invention, images from multiple views may be presented, by using a polarization element, in areas corresponding to pixel positions, which, therefore, can improve imaging resolution.

Abstract translation: 本发明的实施例提供了一种成像系统，包括：具有第一偏振方向的第一偏振元件; 具有第二偏振方向的第二偏振元件; 第三偏振元件，其中所述第三偏振元件具有分别对应于多个像素位置的多个区域，所述多个区域中的每个区域由第一半区域和第二半区域组成; 第一投影装置，通过使用第一偏振元件并基于多个像素位置将图像投影到多个区域上; 以及第二投影装置，通过使用第二偏振元件并基于多个像素位置将图像投影到多个区域上。 在本发明的实施例中，可以通过使用偏振元件在与像素位置对应的区域中呈现来自多个视图的图像，因此可以提高成像分辨率。

公开(公告)号：US20150035996A1

公开(公告)日：2015-02-05

申请号：US14518164

申请日：2014-10-20

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Shan GAO ,  Lina SUN ,  Qingpeng XIE

IPC: H04N17/00 ,  H04N21/234 ,  H04N7/64 ,  H04N17/02 ,  H04N21/44

CPC classification number: H04N17/004 ,  H04N17/02 ,  H04N19/89 ,  H04N21/23418 ,  H04N21/44008

Abstract: In a method for evaluating media quality, media reference quality and rebuffering event distortion quality are obtained, final media quality are determined according to the obtained media reference quality and rebuffering event distortion quality, where a parameter of the rebuffering event distortion quality includes at least one of the following: the number of rebuffering events, a duration of the rebuffering event, a multiple rebuffering event interaction impact parameter, initial media quality, and a factor describing media content complexity. When media quality is calculated, impact of the multiple rebuffering event interaction impact parameter, the initial media quality, and the factor describing media content complexity on the media quality is considered, thereby making a media quality evaluation result more accurate.

Abstract translation: 在评估媒体质量的方法中，获得媒体参考质量和回退事件失真质量，根据所获得的媒体参考质量和再生事件失真质量来确定最终媒体质量，其中，回退事件失真质量的参数包括至少一个 以下内容：重新绑定事件的数量，重新绑定事件的持续时间，多重缓冲事件交互影响参数，初始媒体质量以及描述媒体内容复杂性的因素。 当媒体质量得到计算时，考虑到多重回滚事件交互影响参数的影响，初始媒体质量以及描述媒体内容对媒体质量复杂度的因素，从而使媒体质量评估结果更准确。

公开(公告)号：US20150009406A1

公开(公告)日：2015-01-08

申请号：US14492508

申请日：2014-09-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lina SUN ,  Shan GAO ,  Qingpeng XIE

IPC: H04L29/06 ,  H04N9/64

CPC classification number: H04L65/80 ,  H04N9/64 ,  H04N17/004

Abstract: The present invention discloses a method and an apparatus for evaluating multimedia quality. The method includes: obtaining reference quality of a video and final quality of the video of a multimedia sequence, and reference quality of an audio and final quality of the audio of the multimedia sequence; determining reference quality of the multimedia sequence; determining a distortion value of the multimedia sequence according to the reference quality of the video, the final quality of the video, the reference quality of the audio, and the final quality of the audio; and determining multimedia quality of the multimedia sequence according to the reference quality of the multimedia sequence and the distortion value of the multimedia sequence. The method and apparatus for evaluating multimedia quality can directly reflect distortion of a multimedia sequence, accord with a subjective feeling of a person, and therefore can accurately and effectively evaluate the multimedia quality.

Abstract translation: 本发明公开了一种评估多媒体质量的方法和装置。 该方法包括：获得视频的参考质量和多媒体序列的视频的最终质量，以及多媒体序列的音频的音频和最终质量的参考质量; 确定多媒体序列的参考质量; 根据视频的参考质量，视频的最终质量，音频的参考质量以及音频的最终质量确定多媒体序列的失真值; 以及根据多媒体序列的参考质量和多媒体序列的失真值确定多媒体序列的多媒体质量。 用于评估多媒体质量的方法和装置可以直接反映多媒体序列的失真，符合人的主观感觉，因此可以准确有效地评估多媒体质量。