Title :
Local orthogonal bases
Author :
Bernardini, R. ; Kovacevic, J.
Author_Institution :
Signal Process. Res. Dept., AT&T Bell Labs., Murray Hill, NJ, USA
Abstract :
Discrete-time cosine modulated filter banks, or modulated lapped transforms (MLT), have been in use for some time. Due to a few of their properties, they have become quite popular. For example, all filters (basis functions) of a filter bank are obtained by appropriate modulation of a single prototype filter. We present a new method for constructing local orthogonal bases, both in continuous and discrete time. The approach is very general and can handle a large variety of cases interesting for the applications
Keywords :
band-pass filters; discrete cosine transforms; filtering theory; basis functions; continuous time; discrete time; discrete time cosine modulated filter banks; local orthogonal bases; modulated lapped transforms; Channel bank filters; Continuous wavelet transforms; Discrete transforms; Filter bank; Modulation coding; Multidimensional signal processing; Multidimensional systems; Prototypes; Signal processing algorithms; Time frequency analysis;
Conference_Titel :
Image Processing, 1995. Proceedings., International Conference on
Conference_Location :
Washington, DC
Print_ISBN :
0-8186-7310-9
DOI :
10.1109/ICIP.1995.537701
