Unequal error protection of embedded video bitstream with optimized FEC

In this paper, an optimized unequal error protection scheme using Forward Error Correction (FEC) for transmission of embedded video bitstream over AWGN channel is investigated. The scheme exploits the non-uniform importance and error sensitivity of the bits generated by the a wavelet video coder. De...

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Vydáno v:2013 Annual IEEE India Conference (INDICON) s. 1 - 6
Hlavní autoři: Khan, Mohd Ayyub, Moinuddin, Athar Ali, Khan, Ekram
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.12.2013
Témata:
embedded video
Error correction codes
Forward error correction
Optimized production technology
Streaming media
Table lookup
Unequal error protection
Video sequences
wavelet based video coding
ISSN:2325-940X
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Shrnutí:In this paper, an optimized unequal error protection scheme using Forward Error Correction (FEC) for transmission of embedded video bitstream over AWGN channel is investigated. The scheme exploits the non-uniform importance and error sensitivity of the bits generated by the a wavelet video coder. Depending upon their importance in the reconstruction of the video, the bitstream is first divided into High Priority (HP) and Low Priority (LP) substreams. Then appropriate FEC is applied to these substreams to protect them against the channel errors. The optimal FEC parameters are searched using an offline optimization technique subject to constraint that end-to-end transmission distortion is minimized. A look-up table with optimal FEC parameters for wide range of channel conditions, is designed. Furthermore, this paper also argues that whether optimized UEP has any advantage over EEP for protection of embedded bitstream. This scheme is suitable for real-time video communication using portable devices which possess low processing capabilities and small battery power.
ISSN:2325-940X
DOI:10.1109/INDCON.2013.6725967