Title :
Two-dimensional IIR filters for exact reconstruction in tree-structured sub-band decomposition
Author :
Ansari, Rashid ; Lau, C.-L.
Author_Institution :
University of Pennsylvania, Department of Electrical Engineering, Philadelphia, USA
Abstract :
A procedure for exact reconstruction of a two-dimensional signal after a tree-structured sub-band decomposition is presented. The use of two-dimensional IIR filters derived from one-dimensional allpass building blocks, allowing separable processing along the diagonals, is described.
Keywords :
signal processing; two-dimensional digital filters; 2D type; IIR filters; exact reconstruction; one-dimensional allpass building blocks; signal processing; sub-band decomposition; subband type; tree-structured; two-dimensional signal;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870453
