Design of signal-adapted linear phase paraunitary filter banks

Author

Takeuchi, Tomoaki ; Nagai, Takayuki ; Ikehara, Masaaki

Author_Institution

Dept. of Electr. Eng., Keio Univ., Yokohama, Japan

Volume

5

fYear

1998

fDate

31 May-3 Jun 1998

Firstpage

134

Abstract

In this paper, we propose a new design method of signal-adapted filter banks using an adaptive cascade lattice structure. If the filter bank which is well adapted to the signal statistics is used in the subband coding system, we can encode the signal more efficiently than the case using non-adapted one. The purpose of this paper is to design the filter bank which has energy imbalance of each subband. We use the LMS-based adaptive algorithm to design linear phase paraunitary filter banks (LPPUFB) based on a lattice structure

Keywords

adaptive filters; band-pass filters; cascade networks; delay circuits; digital filters; image coding; lattice filters; least mean squares methods; LMS-based adaptive algorithm; adaptive cascade lattice structure; energy imbalance; image processing; signal statistics; signal-adapted linear phase paraunitary filter banks; subband coding system; Adaptive algorithm; Channel bank filters; Cost function; Design methodology; Filter bank; Image coding; Image reconstruction; Lattices; Signal design; Statistics;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on

Conference_Location

Monterey, CA

Print_ISBN

0-7803-4455-3

Type

conf

DOI

10.1109/ISCAS.1998.694426

Filename

694426