Optimal filter banks for multiple description coding: analysis and synthesis
نویسندگان
چکیده
منابع مشابه
Optimal filter banks for multiple description coding: Analysis and synthesis
Multiple description (MD) coding is a source coding technique for information transmission over unreliable networks. In MD coding, the coder generates several different descriptions of the same signal and the decoder can produce a useful reconstruction of the source with any received subset of these descriptions. In this paper, we study the problem of MD coding of stationary Gaussian sources wi...
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Pier Luigi Dragotti1 and Martin Vetterli1;2 1 Dept. of Electrical Engineering, Swiss Federal Institute of Technology CH-1015 Lausanne, Switzerland 2 EECS Dept., UC Berkeley CA 947020 e-mail: fdragotti,[email protected] http://lcavwww.epfl.ch Abstract | Multiple description coding (MDC) is a source coding technique for information transmission over unreliable networks. In MDC, the coder...
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In this paper we review some of our recent results on the design of critically sampled and oversampled filter banks for multiple description coding. For the case of critically sampled filter banks, we show that optimal filters are obtained by allocating the redundancy over frequency with a reverse ’water-filling’ strategy. Then we present families of oversampled filter banks that attain optimal...
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1 Optimal Filter Banks for Multiple Description Coding: Analysis and Synthesis Pier Luigi Dragotti, Sergio D. Servetto and Martin Vetterli Abstract|Multiple Description (MD) coding is a source coding technique for information transmission over unreliable networks. In MD coding, the coder generates several di erent descriptions of the same signal and the decoder can produce a useful reconstructi...
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A subband coder structure is fully optimized with respect to the minimum block mean squared error between the output and the input signals under a bit constraint. The analysis lter bank structure generates maximally decimated and equal bandwidth subbands. The subband quantizers are modeled as additive noise sources. To simplify the optimization an optimal multiple-input multiple-output system i...
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ژورنال
عنوان ژورنال: IEEE Transactions on Information Theory
سال: 2002
ISSN: 0018-9448
DOI: 10.1109/tit.2002.1013142