A new combination of 1D and 2D filter banks for effective multiresolution image representation

Author

Tanaka, Yuichi ; Ikehara, Masaaki ; Nguyen, Truong Q.

Author_Institution

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

fYear

2008

fDate

12-15 Oct. 2008

Firstpage

2820

Lastpage

2823

Abstract

In this paper, an effective multiresolution image representation using the combination of 2D quincunx filter bank (FB) and directional wavelet transform (WT) is presented. The proposed method yields simple implementation and low calculation costs compared to the other 1D and 2D FB combinations or adaptive directional WTs. Furthermore, it is a nonredundant transform and realizes quad-tree like multiresolution representation. In applications on nonlinear approximation and image coding, the proposed filter bank shows visual quality improvements and has higher PSNR.

Keywords

image coding; image representation; trees (mathematics); wavelet transforms; Markov random field modeling; degraded document image binarization; energy function; generalized Potts prior model; graph cut algorithm; image thresholding; maximum a posteriori probability estimation; maximum likelihood model; uneven light distribution; Computational efficiency; Filter bank; Frequency; Image coding; Image reconstruction; Image representation; Image resolution; Laplace equations; Signal resolution; Wavelet transforms; directional filter banks; image coding; nonlinear approximation; wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2008. ICIP 2008. 15th IEEE International Conference on

Conference_Location

San Diego, CA

ISSN

1522-4880

Print_ISBN

978-1-4244-1765-0

Electronic_ISBN

1522-4880

Type

conf

DOI

10.1109/ICIP.2008.4712381

Filename

4712381