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View point switching method, server and system for multi-view-point video

A multi-viewpoint video and server technology, which is applied in the field of multi-viewpoint video playback, can solve the problems of poor perception, unsmooth switching, application of multi-viewpoint video playback, and no specific design for viewpoint switching, and achieves the effect of wide application range and small changes

Inactive Publication Date: 2020-07-24
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current mainstream HLS or RTMP protocol media playback coordination, both serve the bearer playback of single-view video, and there is no specific design for multi-view video playback applications and view switching
And when the viewpoint is switched, due to the difference between the viewpoints of the multi-viewpoint video, the switching will not be smooth and the look and feel will be poor.

Method used

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  • View point switching method, server and system for multi-view-point video

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Since the current mainstream HLS or RTMP protocol media playback protocols serve the bearer playback of single-view video, there is no specific design for multi-view video playback applications and view switching. Therefore, if figure 2 As shown, the present invention provides a kind of viewpoint switching method of multi-viewpoint video, comprising:

[0049] S1. Receive a viewpoint switching request sent by the terminal, the viewpoint switching request includes the requested new viewpoint information, and the requested new viewpoint information is calculated by the terminal according to the camera information of the multi-viewpoint video and the user's viewpoint switching action;

[0050] S2. The server sends the video of the requested new viewpoint to the terminal according to the requested new viewpoint information.

[0051] In order to switch viewpoints, the terminal first needs to calculate the requested new viewpoint information according to the camera informati...

Embodiment 2

[0060] Firstly, the viewpoint switching technical solution of playing multi-viewpoint video with HLS protocol is explained:

[0061] HLS (HTTP Live Streaming) is an HTTP-based streaming media network transmission protocol proposed by Apple. Its working principle is to divide the entire stream into small HTTP-based files for download, which is called media fragmentation, and the media packaging format is TS. When a media stream is playing, an endpoint can choose to download the same resource at different rates from many different alternate sources, allowing the streaming session to accommodate different data rates. When starting a streaming media session, the terminal will download an extended M3U (m3u8) playlist file containing metadata to find available media streams. The m3u8 file is essentially a playlist (playlist), which may be a media playlist (MediaPlaylist), or a master playlist (Master Playlist). When the m3u8 file is used as a media playlist (Media Playlist), it rec...

Embodiment 3

[0131] The RTMP protocol (Real Time Messaging Protocol, real-time message transmission protocol) is a transmission protocol that uses Flash for objects, video, and audio. This protocol is built on top of the TCP protocol or the polled HTTP protocol. The RTMP protocol is like a container used to hold data packets. These data can be AMF (Action Message Format, action message format) format data, or FLV (Flash Video, Flash Video) video / audio data.

[0132] Because (1) RTMP is a streaming media video transmission control bearer protocol, there is no specific adaptation for the playback application of multi-viewpoint video and viewpoint switching, and it cannot be directly applied in multi-viewpoint video playback; (2) During the process of viewpoint switching, There is a problem of connecting streams of different viewpoints.

[0133] Therefore, this embodiment proposes a method for smooth switching of multi-viewpoint video viewpoints through RTMP: by expanding the fields in the RTM...

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Abstract

The invention discloses a viewpoint switching method of a multi-viewpoint video, which comprises the following steps that: a viewpoint switching request sent by a terminal is received, the viewpoint switching request comprises requested new viewpoint information, and the requested new viewpoint information is calculated by the terminal according to the camera information of the multi-viewpoint video and the viewpoint switching action of a user; and sending the video of the requested new viewpoint to the terminal according to the information of the requested new viewpoint. According to the invention, interaction of multi-viewpoint video viewpoint switching between the terminal and the server can be realized, and smooth transition of viewpoint switching is realized; multi-view switching is realized based on a widely applied HLS or RTMP streaming media protocol, the change is small, and the application range is wide; multiple terminals can be supported to perform viewpoint switching at the same time, the terminals are independent, and respective viewpoint switching videos are played; the method is realized by extending the existing HLS or RTMP streaming media protocol, and the playingof the existing single-viewpoint HLS or RTMP streaming media protocol is not influenced. The invention further provides a corresponding viewpoint switching server and system for the multi-viewpoint video.

Description

technical field [0001] The invention belongs to the technical field of multi-viewpoint video playback, and more specifically relates to a multi-viewpoint video viewpoint switching method, server and system. Background technique [0002] As a new type of video technology, multi-viewpoint video is a method that satisfies people’s need to watch videos from multiple angles. When recording a video, multi-viewpoint video is obtained by shooting the same scene from different perspectives with multiple cameras arranged at different viewpoints. A set of video signals. Multiple cameras are arranged in an array, and the typical arrangement can be divided into one-dimensional (one-shaped or semi-circular), two-dimensional (cross or area array), and three-dimensional (spherical) arrangement. The collected multi-view video data is encoded and sent to the CDN server, and the CDN server streams the video and sends it to the user terminal. When users watch through the terminal, they can fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/6587H04N21/845H04N21/81H04N21/218H04N21/643H04N13/117H04N13/167
CPCH04N21/21805H04N21/643H04N21/6587H04N21/816H04N21/8456H04N13/117H04N13/167
Inventor 田路夏洪升
Owner FENGHUO COMM SCI & TECH CO LTD
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