Title :
A model-based error concealment method for scalable video
Author :
Feideropoulou, Georgia ; Pesquet-Popescu, Béatrice
Author_Institution :
Ecole Nat. Superieure des Telecommun., Paris, France
Abstract :
Scalable video compression algorithms based on motion-compensated spatio-temporal wavelet decomposition have recently gained a lot of interest for video transmission over packet networks due to their flexibility and coding performance. Meanwhile, the adaptation of scalable video to the variations of the transmission conditions over the network could result in losing a part of the bitstream. In this paper we show that a statistical spatio-temporal model of the wavelet coefficients can be effective in the prediction of the lost subbands at the decoder side. Based on this analysis we propose an error concealment method and provide experimental results showing the quality improvement that can be achieved by using it.
Keywords :
data compression; decoding; motion compensation; statistical analysis; stochastic processes; video coding; visual communication; wavelet transforms; model-based error concealment method; motion-compensated spatio-temporal wavelet decomposition; packet networks; scalable video compression algorithms; wavelet coefficients; Decoding; Electronic mail; Predictive models; Scalability; Stochastic processes; Video coding; Video compression; Video sequences; Wavelet coefficients; Wavelet packets;
Conference_Titel :
Signal Processing and Information Technology, 2003. ISSPIT 2003. Proceedings of the 3rd IEEE International Symposium on
Print_ISBN :
0-7803-8292-7
DOI :
10.1109/ISSPIT.2003.1341109
