Recursive Source Coding: A Theory for the Practice of Waveform Coding

di G. Gabor (Autore)

Z. Györfi (Autore)

Springer-Verlag New York Inc., 2011

The spreading of digital technology has resulted in a dramatic increase in the demand for data compression (DC) methods. At the same time, the appearance of highly integrated elements has made more and more com­ plicated algorithms feasible. It is in the fields of speech and image trans­ mission and the transmission and storage of biological signals (e.g., ECG, Body Surface Mapping) where the demand for DC algorithms is greatest. There is, however, a substantial gap between the theory and the practice of DC: an essentially nonconstructive information theoretical attitude and the attractive mathematics of source coding theory are contrasted with a mixture of ad hoc engineering methods. The classical Shannonian infor­ mation theory is fundamentally different from the world of practical pro­ cedures. Theory places great emphasis on block-coding while practice is overwhelmingly dominated by theoretically intractable, mostly differential­ predictive coding (DPC), algorithms. A dialogue between theory and practice has been hindered by two pro­ foundly different conceptions of a data source: practice, mostly because of speech compression considerations, favors non stationary models, while the theory deals mostly with stationary ones.

• Autore: G. Gabor, Z. Györfi
• Editore: Springer-Verlag New York Inc.
• Anno: 2011
• Rilegatura: Paperback / softback
• Pagine: 102 p.
• Dimensioni: 235 x 155 mm
• EAN: 9781461386513

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