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Subband filters optimized for lost coefficient reconstruction

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2 Author(s)
S. S. Hemami ; Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA ; R. M. Gray

Transmission of digital subband coded images over lossy packet networks presents a reconstruction problem at the decoder. This correspondence addresses the design of a family of quadrature mirror filters (QMFs) that minimize the mean-squared error of mean-reconstructed low-frequency subband coefficients. The resulting filters perform well as QMFs as well as provide the desired reconstruction properties in the event of loss

Published in:

IEEE Transactions on Signal Processing  (Volume:45 ,  Issue: 3 )