Abstract
Joint source-channel decoding of Variable Length Codes (VLC) for image and video streaming transmission over unreliable links, such as wireless networks, is a subject of increasing interest. This paper proposes an optimum Maximum Likelihood (ML) decoder of VLC sequences which exploits additional inherent redundancy in the source information, namely (i) the correlation between bits inside a VLC codeword as well as (ii) the correlation between VLC codewords of a VLC sequence unit (e.g. corresponding to one image block). Performance results for improving video decoding over AWGN channels are then presented and compared to the prefix-based decoder as well as the recently proposed VLC decoders.
| Original language | English |
|---|---|
| Pages (from-to) | IV-621-IV-624 |
| Journal | ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings |
| Volume | 4 |
| Publication status | Published - 27 Sept 2004 |
| Externally published | Yes |
| Event | Proceedings - IEEE International Conference on Acoustics, Speech, and Signal Processing - Montreal, Que, Canada Duration: 17 May 2004 → 21 May 2004 |