subband decomposition

subband decomposition
разложение сигнала по поддиапазонам

English-Russian dictionary of computer science and programming. 2013.

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  • Sub-band coding — (SBC) is any form of transform coding that breaks a signal into a number of different frequency bands and encodes each one independently. This decomposition is often the first step in data compression for audio and video signals.Basic… …   Wikipedia

  • Ali Akansu — Ali N. Akansu has made pioneering research contributions on the theory and applications of subband and wavelet transforms. He showed in 1989 that Binomial Quadrature Mirror Filter Bank, Binomial QMF, is identical to the celebrated Daubechies… …   Wikipedia

  • Polyphase matrix — In signal processing,a polyphase matrix is a matrix whose elements are filter masks.It represents a filter bank as it is usedin sub band coders alias discrete wavelet transforms.Gilbert Strang and Truong Nguyen. Wavelets and Filter Banks… …   Wikipedia

  • Contourlet — Contourlets form a multiresolution directional tight frame designed to efficiently approximate images made of smooth regions separated by smooth boundaries. The Contourlet transform has a fast implementation based on a Laplacian Pyramid… …   Wikipedia

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