Title :
Pseudolapped orthogonal transform
Author_Institution :
Dept. de Engenharia Eletrica, Univ. de Brasilia, Brazil
fDate :
3/2/1989 12:00:00 AM
Abstract :
The pseudo-LOT, a modified version of the lapped orthogonal transform (LOT), is introduced. It can be viewed as either a block transform with overlapping basis functions or a critically-sampled multirate filter bank with nearly perfect reconstruction. A fast algorithm for the pseudo-LOT, based on the discrete cosine transform, is presented.
Keywords :
filtering and prediction theory; transforms; block transform; critically-sampled multirate filter bank; discrete cosine transform; lapped orthogonal transform; nearly perfect reconstruction; overlapping basis functions; pseudo-LOT;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890217
