Title :
Fast code-rate optimization for robust image transmission over lossy packet networks
Author :
Grangetto, Marco ; Magli, Enrico ; Olmo, Gabriella
Author_Institution :
Center for Multimedia Radio Commun., Politecnico di Torino, Italy
fDate :
6/1/2005 12:00:00 AM
Abstract :
In this paper, we propose an efficient method for the allocation of Reed-Solomon codes to source symbols, for unequal loss protection. The proposed formulation recasts the multivariate optimization problem into a univariate one, dramatically reducing the computational complexity. Results are shown for image transmission over lossy packet networks, employing the JPEG2000 and SPIHT encoders. The proposed algorithm exhibits performance equivalent to previous methods, while providing a significant complexity reduction.
Keywords :
Reed-Solomon codes; image coding; optimisation; JPEG2000 encoder; Reed-Solomon code; SPIHT encoder; computational complexity; fast code-rate optimization; image transmission; lossy packet network; multiple description coding; multivariate optimization; unequal loss protection; Computational complexity; Delay; Forward error correction; Image communication; PSNR; Propagation losses; Protection; Robustness; Signal processing algorithms; Streaming media; JPEG2000; Reed–Solomon codes; SPIHT; multiple description coding; unequal loss protection;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2005.849976
