Transmission method for multi-eyepoint video encode based on peer-to-peer covering network cooperation

Abstract

The invention relates to a multi-view video code transmission method based on peer-to-peer overlay network cooperation, belonging to multi-media data transmission technical field. A server enables the users which watch the same view to make up an inside-view overlay network; all the inside-view overlay networks together make up an inter-view overlay network; the key frame data in a multi-view video program is evenly divided into a plurality of key frame data slices which are respectively transmitted to audiences who watch different views; all the audiences exchange the key frame slices with each other. The method for detecting the overall condition of bandwidth resource of the audiences at all the views increases the amount of multi-view video program data transmitted by views with rich bandwidth resource by changing the range for the user to respond to the data request in the transmission process. The method has the advantages that the method ensures the quality of the video and the expansibility of the server to provide multi-view video service; the method realizes overall optimized allocation and effective use of the user bandwidth source and solves the problem of heterogeneity of the view sources in multi-view video stream media service.

Description

Technical field [0001] The invention relates to a transmission method of multi-view video coding based on peer-to-peer overlay network cooperation, in particular to a method of coding and transmitting large-capacity multi-view video video under the condition of limited bandwidth in the Internet environment, and belongs to the technical field of multimedia data transmission. Background technique [0002] Multi-viewpoint video and 3D stereo TV are a new generation of interactive media services that bring users a brand-new viewing experience: users can freely choose the viewpoint to watch and switch between different viewpoints at any time; it can be used without glasses Get a three-dimensional scene experience and feeling. Compared with traditional 2D TVs, its huge advantages in visual effects and user interaction have made multi-view video / 3D stereo TV a research hotspot. With rapid development and popularization, it will become a broadcast network and broadband network after digi...

AI Technical Summary

Problems solved by technology

[0004] However, the difficulties in the transmission of multi-viewpoint video and 3D stereoscopic TV restrict the large-scale deployment of their streaming media services: multi-viewpoint video and 3D stereoscopic TV have a huge data capacity, which consumes too much bandwidth resources of streaming media servers and affects streaming media. Overall performance and scalability of the system

[0005] Existing transmission schemes all adopt the scheme of independent transmission of the video data of each viewpoint, which fails to make full use of the content correlation of adjacent viewpoints in the video, so a large amount of transmission redundancy is introduced, resulting in excessive bandwidth consumption of the streaming media server. Big

In addition, the independent transmission scheme makes it impossible for the server to optimize and configure the bandwidth resources of each viewpoint as a whole, which makes the abundant resources of the viewpoint idle and waste; on the other hand, the viewpoint with insufficient resources has to request the server to allocate additional bandwidth resources. To maintain its normal streaming media transmission, further increasing the transmission overhead of the server

Images