公开(公告)号：US10462518B2

公开(公告)日：2019-10-29

申请号：US15467486

申请日：2017-03-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peiyun Di ,  Xin Liu ,  Changquan Ai

IPC: H04N21/437 ,  H04N21/4402 ,  H04N5/232 ,  H04N5/44 ,  H04N7/01 ,  H04N21/258 ,  H04N21/44 ,  H04N21/472

Abstract: An image presentation method, where the method includes obtaining identification information of a first object when a switching instruction for switching the first object to a second object is received, where one of the first object or the second object is a first 360-degree panorama, the other is a first strip panorama, the first strip panorama includes multiple front sub-images used to display a first region, an ith front sub-image in the multiple front sub-images corresponds to a front image in a jth 360-degree panorama in multiple 360-degree panoramas and displays an ith sub-region in the first region, and the first 360-degree panorama is one of the multiple 360-degree panoramas, obtaining, according to the identification information of the first object, the second object corresponding to the identification information of the first object, and presenting the second object.

公开(公告)号：US20160277734A1

公开(公告)日：2016-09-22

申请号：US15071269

申请日：2016-03-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changquan Ai ,  Shaobo Zhang ,  Haitao Yang

IPC: H04N19/105 ,  H04N19/172 ,  H04N19/44

Abstract: A video frame decoding method and apparatus in order to implement efficient and fast video decoding. The method includes acquiring a target time point of a video, obtaining a frame number of a corresponding random access frame according to the target time point, obtaining a frame number of a frame that can be independently decoded, where the dependency set includes at least one dependency, and the dependency represents a correspondence between a frame number of a random access frame and a frame number of a frame that can be independently decoded, and obtaining, according to the frame number of the frame that can be independently decoded, video data of the frame that can be independently decoded, and decoding the random access frame.

Abstract translation: 视频帧解码方法和装置，以实现高效快速的视频解码。 该方法包括获取视频的目标时间点，根据目标时间点获得对应的随机接入帧的帧号，获得可独立解码的帧的帧号，其中依赖关系集包括至少一个 依赖性，依赖性表示随机接入帧的帧号与可以独立解码的帧的帧号之间的对应关系，并且根据可以独立解码的帧的帧号获得视频数据 可以独立解码的帧，并对随机接入帧进行解码。

公开(公告)号：US10708581B2

公开(公告)日：2020-07-07

申请号：US15071269

申请日：2016-03-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changquan Ai ,  Shaobo Zhang ,  Haitao Yang

IPC: H04N19/105 ,  H04N19/23 ,  H04N19/70 ,  H04N19/46 ,  H04N19/172 ,  H04N19/44 ,  H04N19/107

Abstract: A video frame decoding method and apparatus in order to implement efficient and fast video decoding. The method includes acquiring a target time point of a video, obtaining a frame number of a corresponding random access frame according to the target time point, obtaining a frame number of a frame that can be independently decoded, where the dependency set includes at least one dependency, and the dependency represents a correspondence between a frame number of a random access frame and a frame number of a frame that can be independently decoded, and obtaining, according to the frame number of the frame that can be independently decoded, video data of the frame that can be independently decoded, and decoding the random access frame.

公开(公告)号：US20170195727A1

公开(公告)日：2017-07-06

申请号：US15467486

申请日：2017-03-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peiyun Di ,  Xin Liu ,  Changquan Ai

IPC: H04N21/4402 ,  H04N21/437 ,  H04N7/01 ,  H04N21/44 ,  H04N5/44 ,  H04N5/232 ,  H04N21/258 ,  H04N21/472

CPC classification number: H04N21/440263 ,  H04N5/23206 ,  H04N5/23238 ,  H04N5/23293 ,  H04N5/4403 ,  H04N7/0117 ,  H04N21/25841 ,  H04N21/437 ,  H04N21/44016 ,  H04N21/47202

Abstract: An image presentation method, where the method includes obtaining identification information of a first object when a switching instruction for switching the first object to a second object is received, where one of the first object or the second object is a first 360-degree panorama, the other is a first strip panorama, the first strip panorama includes multiple front sub-images used to display a first region, an ith front sub-image in the multiple front sub-images corresponds to a front image in a jth 360-degree panorama in multiple 360-degree panoramas and displays an ith sub-region in the first region, and the first 360-degree panorama is one of the multiple 360-degree panoramas, obtaining, according to the identification information of the first object, the second object corresponding to the identification information of the first object, and presenting the second object.

公开(公告)号：US09628547B2

公开(公告)日：2017-04-18

申请号：US14249767

申请日：2014-04-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changquan Ai ,  Xin Liu ,  Yangpo Xu

IPC: H04L29/08 ,  H04L29/06

CPC classification number: H04L67/06 ,  H04L65/4084 ,  H04L65/602 ,  H04L65/608 ,  H04L65/80

Abstract: Embodiments of the present invention provide media file receiving and media file sending methods, apparatuses, and systems. A media file receiving method includes: obtaining, by a client, an MPD fragment address of a first MPD fragment from a media presentation description MPD fragment index file according to a start-to-play time point requested by a user; sending, by the client, a first MPD fragment obtaining request including the MPD fragment address of the first MPD fragment to a server; receiving, by the client, the first MPD fragment fed back by the server, and sending a media segment obtaining request to the server according to media description information in the first MPD fragment; and receiving, by the client, a media segment fed back by the server. With the media receiving method according to the embodiments of the present invention, an objective of rapidly starting playing a media file can be achieved.

公开(公告)号：US20140325018A1

公开(公告)日：2014-10-30

申请号：US14249767

申请日：2014-04-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changquan Ai ,  Xin Liu ,  Yangpo Xu

IPC: H04L29/08

CPC classification number: H04L67/06 ,  H04L65/4084 ,  H04L65/602 ,  H04L65/608 ,  H04L65/80

Abstract: Embodiments of the present invention provide media file receiving and media file sending methods, apparatuses, and systems. A media file receiving method includes: obtaining, by a client, an MPD fragment address of a first MPD fragment from a media presentation description MPD fragment index file according to a start-to-play time point requested by a user; sending, by the client, a first MPD fragment obtaining request including the MPD fragment address of the first MPD fragment to a server; receiving, by the client, the first MPD fragment fed back by the server, and sending a media segment obtaining request to the server according to media description information in the first MPD fragment; and receiving, by the client, a media segment fed back by the server. With the media receiving method according to the embodiments of the present invention, an objective of rapidly starting playing a media file can be achieved.

Abstract translation: 本发明的实施例提供媒体文件接收和媒体文件发送方法，装置和系统。 媒体文件接收方法包括：根据用户要求的开始播放时间点，由客户端从媒体呈现描述MPD片段索引文件获取第一MPD片段的MPD片段地址; 由客户端向服务器发送包含第一MPD片段的MPD片段地址的第一MPD片段获取请求; 由所述客户端接收由所述服务器反馈的所述第一MPD片段，并根据所述第一MPD片段中的媒体描述信息向所述服务器发送媒体片段获取请求; 以及由所述客户端接收由所述服务器反馈的媒体段。 利用根据本发明的实施例的媒体接收方法，可以实现快速开始播放媒体文件的目的。