DocumentCode
1501451
Title
A simplified lattice factorization for linear-phase perfect reconstruction filter bank
Author
Gan, Lu ; Ma, Kai-Kuang
Author_Institution
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Volume
8
Issue
7
fYear
2001
fDate
7/1/2001 12:00:00 AM
Firstpage
207
Lastpage
209
Abstract
We propose a simplified version of lattice factorization for linear-phase perfect reconstruction filter bank (LPPRFB) derived by T.D. Tran et al. (see IEEE Trans. Signal Processing. vol.48, no.1, p.133-47, Jan. 2000). The proposed new lattice structure spans the same class of LPPRFB, while substantially reducing free parameters in nonlinear optimization and saving computation cost in hardware implementation. To further address the importance of our proposed structure, we generalize our factorization to multidimensional LPPRFB (MD-LPPRFB), and show its effectiveness.
Keywords
channel bank filters; lattice filters; linear phase filters; matrix decomposition; multidimensional signal processing; signal reconstruction; hardware implementation; linear-phase perfect reconstruction filter bank; multidimensional filter bank; nonlinear optimization; simplified lattice factorization; Computational efficiency; Cost function; Delay; Filter bank; Gallium nitride; Hardware; Image coding; Image reconstruction; Lattices; Multidimensional systems;
fLanguage
English
Journal_Title
Signal Processing Letters, IEEE
Publisher
ieee
ISSN
1070-9908
Type
jour
DOI
10.1109/97.928679
Filename
928679
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