HIGH-QUALITY CAUSAL INTERPOLATION FOR ONLINE UNIDIMENSIONAL SIGNAL PROCESSING (ThuAmOR4)

Author(s) : Thierry Blu (Swiss federal institute of technology, Switzerland) Philippe Thévenaz (Swiss federal institute of technology, Switzerland) Michael Unser (Swiss federal institute of technology, Switzerland)

Abstract : We present a procedure for designing interpolation kernels that are adapted to time signals; i.e., they are causal, even though they do not have a finite support. The considered kernels are obtained by digital IIR filtering of a finite support function that has maximum approximation order. We show how to build these kernel starting from the all-pole digital filter and we give some practical design examples.

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