Title :
A transformation for the calculation of filter pairs for perfect reconstruction in subband coding with linequincunx subsampling
Author :
De Lameillieure, Jan ; Schamel, Günter
Author_Institution :
Lab. for Commun. Eng. & Inf. Transmission, State Univ. of Ghent, Belgium
fDate :
6/1/1992 12:00:00 AM
Abstract :
For a feasible calculation of filters for the subband coding of picture sequences with linequincunx subsampling, a coordinate transformation of the sampling raster is proposed. With the new coordinates, the linequincunx subsampling becomes a simple quincunx subsampling without interlace. This facilitates the mathematical derivation of three-dimensional perfect reconstruction filters
Keywords :
encoding; multidimensional digital filters; picture processing; coordinate transformation; linequincunx subsampling; picture sequences; quincunx subsampling; sampling raster; subband coding; three-dimensional perfect reconstruction filters; Agriculture; Bit rate; Entropy; HDTV; Laboratories; Noise reduction; Sampling methods; Spatial filters; Spatial resolution; Time frequency analysis;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
