Title :
Optimal orthogonal boundary filter banks
Author :
De Queiroz, Ricardo L. ; Rao, K.R.
Author_Institution :
Xerox Co., Webster, NY, USA
Abstract :
The use of a paraunitary filter bank for image processing requires a special treatment at image boundaries to ensure perfect reconstruction and orthogonality of these regions. Using time-varying boundary filter banks, we will discuss a procedure that explores all degrees of freedom of the border filters in a method essentially independent of signal extensions, allowing us to design optimal boundary filter banks, while maintaining fast implementation algorithms
Keywords :
band-pass filters; filtering theory; image reconstruction; fast implementation algorithms; image boundaries; image processing; optimal orthogonal boundary filter banks; orthogonality; paraunitary filter bank; perfect reconstruction; signal extensions; Bismuth; Channel bank filters; Delay; Filter bank; Finite impulse response filter; Flow graphs; Niobium; Signal analysis; Signal synthesis; Symmetric matrices;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-2431-5
DOI :
10.1109/ICASSP.1995.480477
