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A Flexible R-D-Based Multiple Description Scheme for JPEG 2000

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3 Author(s)
Enrico Baccaglini ; CERCOM, Politecnico di Torino ; Tammam Tillo ; Gabriella Olmo

Multiple description coding (MDC) is a good way to combat packet losses in error-prone networks subject to packet erasures. However, redundancy tuning is often difficult, and this makes the generation of descriptions with good redundancy-rate-distortion performance a hard job. Moreover, the complexity of generating more than two descriptions represents a strong limitation to MDC. In this letter, we propose a method that exploits the data rate-distortion characteristics to generate multiple descriptions for JPEG 2000 with tunable redundancy levels. The identification of the best number of descriptions as a function of the network conditions is also addressed

Published in:

IEEE Signal Processing Letters  (Volume:14 ,  Issue: 3 )