Title :
Error correction by means of arithmetic codes: an application to resilient image transmission
Author :
Grangetto, M. ; Olmo, G. ; Cosman, P.
Author_Institution :
Dipt. di Elettronica, Politecnico di Torino, Italy
Abstract :
In this paper, two novel maximum a posteriori (MAP) estimators for the decoding of arithmetic codes in the presence of transmission errors are presented. Trellis search techniques and a forbidden symbol are employed to obtain forward error correction. The proposed system is applied to lossless image compression and transmission across the BSC; the results are compared in terms of both performance and complexity with a traditional separated source and channel coding approach based on convolutional codes.
Keywords :
arithmetic codes; data compression; error correction codes; forward error correction; image coding; maximum likelihood decoding; maximum likelihood estimation; mobile radio; multimedia communication; search problems; trellis codes; BSC; MAP decoding; arithmetic codes; complexity; error correction; forbidden symbol; forward error correction; lossless image compression; maximum a posteriori estimators; mobile multimedia; performance; resilient image transmission; transmission errors; trellis search; Arithmetic; Channel coding; Convolutional codes; Decoding; Error correction codes; Forward error correction; Image coding; Image communication; Performance loss; Propagation losses;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on
Print_ISBN :
0-7803-7663-3
DOI :
10.1109/ICASSP.2003.1202620
