A Non-Expansive Convolution for Nonlinear-Phase Paraunitary Filter Banks and Its Application to Image Coding

Author

Tanaka, Yuichi ; Ochi, Akihiro ; Ikehara, Masaaki

Author_Institution

Dept. of Electron. & Electr. Eng., Keio Univ., Kanagawa

fYear

2005

fDate

Oct. 28 2005-Nov. 1 2005

Firstpage

54

Lastpage

58

Abstract

This paper proposes a new non-expansive convolution for nonlinear-phase paraunitary filter banks (NLPPUFBs). First, we present that any NLPPUFBs can be implemented by connecting several block transforms. Next, we show a signal extension method at the analysis bank by exploiting the characteristics of that structure. Furthermore, we prove that the signal can be reconstructed at the synthesis bank without any redundant signals. Finally, we apply the proposed extension to image coding to validate our method

Keywords

channel bank filters; image coding; image reconstruction; matrix algebra; nonlinear filters; image coding; nonlinear-phase paraunitary filter banks; signal reconstruction; Channel bank filters; Convolution; Discrete cosine transforms; Filter bank; Image coding; Image reconstruction; Joining processes; Signal analysis; Signal synthesis; Transform coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2005. Conference Record of the Thirty-Ninth Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

1-4244-0131-3

Type

conf

DOI

10.1109/ACSSC.2005.1599700

Filename

1599700