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Conference papers

An MDC-based video streaming architecture for mobile networks

Abstract : Multiple description coding (MDC) is a framework designed to improve the robustness of video content transmission in lossy environments. In this work, we propose an MDC technique using a legacy coder to produce two descriptions, based on separation of even and odd frames. If only one description is received, the missing frames are reconstructed using temporal high-order motion interpolation (HOMI), a technique originally proposed for distributed video coding. If both descriptions are received, the frames are reconstructed as a block-wise linear combination of the two descriptions, with the coefficient computed at the encoder in a RD-optimised fashion, encoded with a contextadaptive arithmetic coder, and sent as side information. We integrated the proposed technique in a mobile ad-hoc streaming protocol, and tested it using a group mobility model. The results show a non-negligible gain for the expected video quality, with respect to the reference technique.
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Claudio Greco, Giovanni Petrazzuoli, M. Cagnazzo, Beatrice Pesquet-Popescu. An MDC-based video streaming architecture for mobile networks. IEEE MMSP, Oct 2011, Hangzhou, China. pp.1-6. ⟨hal-00665630⟩

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