Spatially adaptive IIR analysis-synthesis filter banks for image coding
Mark J. T. Smith, W.C. Chung · 2003
Infinite-impulse-response (IIR) time-varying filter banks and their application to finite-support signals are analysed. The filter bank is based on computationally efficient recursive polyphase sections that dynamically change in response to the input signal. In the absence of quantization, reconstruction can be made exact. By proper choice of an adaptation scheme, it is shown that time varying filter banks can yield improvement over conventional ones.>