Creating and sharing knowledge for telecommunications

Project: ROBUST JOINT SOURCE/CHANNEL CODING FOR MULTIMEDIA COMMUNICATIONS

Acronym: PICS
Main Objective: The MDC makes it possible to control easily the amount of redundancy introduced in the transmitted signal while maintaining good quality decoding
whatever the state of the channel. However, in the case of non stationary noisy channel, few works have been dedicated to the tuning of the
redundancy according to the noise level. The goal of this project is to design a MDC that controls automatically this redundancy between the
descriptors according to the channel state. Furthermore, in case of embedded devices we also propose to introduce distributed coding to move the
complexity from the coder to the decoder. The proposed framework includes a wavelet transform and an optimal bit allocation process of the binary
resource across the different descriptors and the different wavelet subbands. Our model will take into account both the knowledge of the channels
characteristics (heterogeneity, non stationarity, ...) and the propagation conditions encountered in a real environment.
Reference: 07
Funding: FCT/GRICES, CNRS
Start Date: 01-01-2008
End Date: 01-01-2009
Team: Mario Marques Freire
Groups: Multimedia Signal Processing – Cv
Partners:
Local Coordinator: Maria Manuela Areias da Costa Pereira de Sousa
Links: Internal Page
Associated Publications