Title :
Balanced multiple description scalar quantization
Author :
Radulovic, Ivana ; Frossard, Pascal
Author_Institution :
Ecole Polytech. Fed. de Lausanne, Signal Process. Labs., Lausanne
Abstract :
This paper tackles the problem of the generation of an arbitrary number of balanced descriptions with multiple description scalar quantization (MDSQ). We show how, with a very low complexity, we can vary the number of descriptions and the redundancy between them, in order to adapt to different channel characteristics. A comparison with state-of-the-art MDSQ schemes shows a better performance of our solution in terms of an average distortion at the receiver, which comes from the flexibility of our solution to better adapt to various lossy conditions.
Keywords :
encoding; quantisation (signal); average distortion; multiple description scalar quantization; receiver; scalar quantization; Decoding; Degradation; Distortion measurement; Laboratories; Performance loss; Quantization; Redundancy; Signal generators; Signal processing; Sufficient conditions;
Conference_Titel :
Information Theory, 2008. ISIT 2008. IEEE International Symposium on
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-2256-2
Electronic_ISBN :
978-1-4244-2257-9
DOI :
10.1109/ISIT.2008.4595339