An MDC-based video streaming architecture for mobile networks
| Autor: | Giovanni Petrazzuoli, Marco Cagnazzo, Claudio Greco, Beatrice Pesquet-Popescu |
|---|---|
| Přispěvatelé: | Laboratoire Traitement et Communication de l'Information (LTCI), Télécom ParisTech-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS), Télécom Paristech, Admin |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Theoretical computer science
mobile ad-hoc networks Computer science ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION 02 engineering and technology Lossy compression Video quality image interpolation legacy coder multiple description robust coding Video coding Robustness (computer science) Motion estimation 0202 electrical engineering electronic engineering information engineering Computer vision [INFO.INFO-MM] Computer Science [cs]/Multimedia [cs.MM] Motion compensation business.industry Multiple description coding [INFO.INFO-MM]Computer Science [cs]/Multimedia [cs.MM] 020206 networking & telecommunications 020201 artificial intelligence & image processing Artificial intelligence Motion interpolation business Encoder |
| Zdroj: | IEEE MMSP IEEE MMSP, Oct 2011, Hangzhou, China. pp.1-6 MMSP |
| Popis: | International audience; 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. |
| Databáze: | OpenAIRE |
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