Title :
Multidimensional WDFs used in a PR multirate system
Author :
Gottscheber, Achim ; Nishihara, Akinori
Author_Institution :
Dept. of Phys. Electron., Tokyo Inst. of Technol., Japan
Abstract :
This paper addresses the problem of designing and implementing a three-dimensional orthonormal nonseparable perfect reconstruction (PR) QMF bank. Wavelet bases can be obtained from this PR QMF bank that is realized with wave digital filters. Infinite length signals may be processed with the proposed stable four-channel multirate system, that uses a body centered cubic sampling lattice. A two-dimensional 4-channel PR QMF bank using a hexagonal sampling matrix is also shown
Keywords :
band-pass filters; lattice filters; multidimensional digital filters; quadrature mirror filters; signal sampling; wave digital filters; wavelet transforms; 3D orthonormal nonseparable perfect reconstruction QMF bank; body centered cubic sampling lattice; hexagonal sampling matrix; infinite length signals; multidimensional digital filters; stable four-channel multirate system; two-dimensional 4-channel PR QMF bank; wave digital filters; wavelet bases; Continuous wavelet transforms; Digital filters; Filter bank; Lattices; Matrix decomposition; Multidimensional systems; Sampling methods; Signal processing; Signal sampling; System performance;
Conference_Titel :
TENCON '96. Proceedings., 1996 IEEE TENCON. Digital Signal Processing Applications
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-3679-8
DOI :
10.1109/TENCON.1996.608824
