DocumentCode
3547226
Title
A novel lattice structure of M-channel paraunitary filter banks
Author
Ikehara, Masaaki ; Kobayashi, Yuhiro
Author_Institution
Dept. of Electron. & Electr. Eng., Keio Univ., Kanagawa, Japan
fYear
2005
fDate
23-26 May 2005
Firstpage
4293
Abstract
In this paper, we present a novel lattice structure of M-channel paraunitary filter banks. M-channel paraunitary filter banks without imposing the linear phase constraint outperform the linear phase paraunitary filter banks in image coding. Removing the redundancy of the lattice structure in filter banks, the complete and minimal structure is derived. Based on this structure, the pairwise mirror-image filter banks are also derived by restricting the rotation angles. Finally we show some examples to validate the proposed method.
Keywords
channel bank filters; digital filters; image coding; lattice filters; M-channel paraunitary filter banks; complete minimal structure; image coding; lattice structure; pairwise mirror-image filter banks; redundancy; restricted rotation angles; Channel bank filters; Filter bank; Image coding; Lattices; OFDM modulation; Signal synthesis; Speech processing; Speech synthesis; Video compression; Video signal processing;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN
0-7803-8834-8
Type
conf
DOI
10.1109/ISCAS.2005.1465580
Filename
1465580
Link To Document