MADUF WP4.2 Statistical Multiplexing Using SVC

VUB-ETRO UGent-MMLab

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Presentation Overview

 Problem  Solution: Statistical Multiplexing  Scalable Video Coding  Components of the Statistical Multiplexer  Objective Results  Perceptual Results  Demo  Questions

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Problem

 Classical video multiplexing approach  Each video channel same bandwidth

 However  Different content characteristics per channel

=> different quality between channels  Content characteristics change in time

=> quality varies in time

 Result  Bad user experience

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Solution: Statistical Multiplexing

 Dynamic joint rate allocation in function of content characteristics

 New issues  Encoding?  Relevant content characteristics?  Joint rate allocation?  Bitrate adaptation?

 Answers WP4.2

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Scalable Video Coding

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Components of the Statistical Multiplexer (1)

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Components of the Statistical Multiplexer (2)

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Objective Results

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Perceptual results

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Demo

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Questions

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Acknowledgement

 We especially would like to thank the people from Nokia Siemens Networks for giving us the opportunity to test our prototype on their DVB-H infrastructure.