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Article Dans Une Revue IETE journal of research Année : 2009

Joint source and channel coding for real time H.264 coded video transmission using mobile hand-held devices

Résumé

This paper proposes a joint source channel coding scheme for robust real time transmission of H.264/AVC ­coded ­video over noisy channels and under bandwidth limitations. A new method of rate adaptation to the ­allowed ­maximum channel transmission rate which does not assume source rate control in the source coder has been ­proposed. This keeps system complexity reasonable and improves the perceived decoded video quality. These are desirable features for two-way video-conferencing using mobile hand-held devices. Data partitioning is used to code the source data. Then, unequal error protection is applied at the network abstraction layer. For robustness, we use joint ­optimization of forward error correction at the transmitter and error concealment at the source decoder. A low complexity and ­efficient algorithm of channel code rate allocation to the network abstraction layer units is then developed. ­Simulation results show that the perceived decoded video quality is improved for small levels of signal-to-noise ratio.
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Dates et versions

hal-00444389 , version 1 (06-01-2010)

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Citer

Mohamed Azni, Ramesh Pyndiah, Karim Mokrani, Frédéric Guilloud. Joint source and channel coding for real time H.264 coded video transmission using mobile hand-held devices. IETE journal of research, 2009, 55 (4), pp.154 - 161. ⟨10.4103/0377-2063.55984⟩. ⟨hal-00444389⟩
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