Multiple description coding algorithms for H.264 coder

ABSTRACT

In this paper we address the problem of video transmission over unreliable networks. The proposed approach moves from the concept of multiple description coding (MDC) introducing some simple algorithms to obtain sub-streams introducing the concepts of either spatial, temporal, SNR adaptation. The proposed algorithms have been implemented as pre- post- processing of the basic H.264/SVC codec. Although in principle as many descriptions as desired can be generated, simulation results using only two description show good results both when all descriptions are received and when only one of the two is received. Analysis performed in case of either random or packet losses show the robustness of the algorithms.

REFERENCES

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INDEX TERMS

Keywords:
H.264, multiple description coding, scalability