Title :
A design method of multidimensional linear-phase paraunitary filter banks with a lattice structure
Author :
Muramatsu, Shogo ; Yamada, Akihiko ; Kiya, Hatoshi
Author_Institution :
Dept. of Electr. Eng., Tokyo Metropolitan Univ., Japan
Abstract :
A lattice structure of multidimensional (MD) linear-phase paraunitary filter banks (LPPUFBs) is proposed, which makes it possible to design such filter banks in a systematic manner. The proposed structure can produce MD-LPPUFBs whose filters all have the region of support 𝒩(MΞ), where M and Ξ are the decimation and an integer diagonal matrices, respectively, and 𝒩 (𝒩) is the set of integer vectors in the fundamental parallelpiped of N. Since our proposed system structurally restricts both the paraunitary and linear-phase properties, an unconstrained optimization process can be used to design MD-LPPUFBs. Some design examples are included to show the significance.
Keywords :
band-pass filters; filter design method; integer diagonal matrices; integer vectors; lattice structure; matrix decimation; multidimensional linear-phase paraunitary filter banks; region of support; unconstrained optimization; Channel bank filters; Data compression; Design methodology; Design optimization; Filter bank; Lattices; Multidimensional signal processing; Multidimensional systems; Signal processing; Visual communication;
Conference_Titel :
TENCON '97. IEEE Region 10 Annual Conference. Speech and Image Technologies for Computing and Telecommunications., Proceedings of IEEE
Conference_Location :
Brisbane, Qld., Australia
Print_ISBN :
0-7803-4365-4
DOI :
10.1109/TENCON.1997.647260
