A New Scalable Free Viewpoint Video Streaming System Over IP Network

Free-viewpoint video is a new type of interactive multimedia service allowing users to control their viewpoint and generate new views of a dynamic scene from any perspective. The uniquely generated and displayed views are composed from two or more high bitrate camera streams that must be delivered to the users depending on their continuously changing perspective. Due to significant network and computational resource requirements, we proposed scalable viewpoint generation and delivery schemes based on multicast forwarding and distributed approach. Our aim was to find the optimal deployment locations of the distributed viewpoint synthesis processes in the network topology by allowing network nodes to act as proxy servers with caching and viewpoint synthesis functionalities. Moreover, a predictive multicast group management scheme was introduced in order to provide all camera views that may be requested in the near future and prevent the viewpoint synthesizer algorithm from remaining without camera streams. The obtained results showed that even 42% traffic decrease can be realized using distributed viewpoint synthesis and the probability of viewpoint synthesis starvation can be also significantly reduced in future free viewpoint video services.

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Optimization of distributed free-viewpoint video synthesis

Huszák

2014

2014 3dtv-Conference: The True Vision - Capture, Transmission and Display of 3D Video (3dtv-Con)

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A New Scalable Free Viewpoint Video Streaming System Over IP Network

Cited by 5 publications

References 13 publications

Optimized camera handover scheme in free-viewpoint video streaming

Optimized camera handover scheme in free-viewpoint video streaming

Advanced free viewpoint video streaming techniques

Optimization of distributed free-viewpoint video synthesis

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