Method for control delay in interactive multiple vision point video stream media service

A technology for multi-view video and streaming media, which is applied in branch offices providing special services, data exchange details, and pulse-modulated TV signal transmission. Bandwidth resource overhead, reducing the number, and ensuring the effect of robustness

Active Publication Date: 2009-06-17
TSINGHUA UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing delay guarantee scheme completely depends on the support of the streaming media server, which results in a huge overhead of server bandwidth resources; on the other hand, the switching of the viewpoint needs to go through the process of exiting the current viewpoint channel and adding a new viewpoint channel, resulting in the loss of viewpoint switching. Large delay time

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  • Method for control delay in interactive multiple vision point video stream media service

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Embodiment Construction

[0024] The method for controlling delay in the interactive multi-viewpoint video streaming media service proposed by the present invention, its network structure is as follows figure 1 shown, including the following steps:

[0025] (1) User 2 performs time synchronization with server 1 through the network time protocol when starting to watch the multi-viewpoint video streaming program;

[0026] (2) The server enables users watching the same viewpoint to construct an intra-viewpoint overlay network 7, and all intra-viewpoint overlay networks jointly construct an inter-viewpoint overlay network 8, and the construction method is as follows:

[0027] The server randomly selects k users who watch the same viewpoint from the viewpoint that the user chooses to watch. The k users who watch the same viewpoint are neighbor nodes of the overlay network within the user’s viewpoint, and return the information to the user. The user and k users watch the same viewpoint The user establishes ...

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Abstract

The invention relates to a method for controlling relay in alternative multi-view-point video flow media service, which belongs to the technical field of multimedia data transmission. The method mainly comprises the following steps: firstly, carrying out the time synchronization between users and a server, wherein the server enables the users who watch the same view-point to build a view-point inner overlay network, all the view-point inner overlay networks together build an overlay network between the view-points, when the users watch multi-view-point video programs, the equal overlay networks are added on the two levels, key frame data in the multi-view-point programs is averagely divided into a plurality of key frame data segments and are respectively transferred to audiences who watch the different view-points, all the audiences mutually exchanges the key frame segments of their own, and the bandwidth spending of the server during the transmission process is reduced according to the transmission condition of the current data. The method reduces the dependence to the bandwidth resource of the server during the view-point switching process according to the neighbor node bandwidth resources, reduces the intermediate section during the view-point switching process, speeds up the switching speed of the view-points, improves the service quality and increases the watching experience of users.

Description

technical field [0001] The invention relates to a method for controlling delay in an interactive multi-view video streaming service, in particular to a method for controlling transmission and viewpoint switching delay in an interactive multi-view video streaming service, and belongs to the technical field of multimedia data transmission. Background technique [0002] Multi-viewpoint video and 3D stereoscopic TV are a new generation of interactive media services, which bring users a brand-new viewing experience: users can freely choose the viewpoint to watch and switch between different viewpoints at any time; Get a three-dimensional scene experience and feeling. Compared with traditional 2D TV, it has great advantages in visual effects and user interaction, making multi-view video / 3D stereo TV a research hotspot, with rapid development and popularization. An important application of the new generation of interactive media. [0003] The convenient and fast features make the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/24H04L12/28H04L12/18
Inventor 孙立峰陈志博张萌杨士强
Owner TSINGHUA UNIV
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