A method of medical image enhancement using wavelet analysis

Author

Tsai, Du-Yih ; Lee, Yongbum ; Sekiya, Masaru ; Sakaguchi, So ; YAMADA, Isao

Author_Institution

Dept. of Radiol. Technol., Niigata Univ., Japan

Volume

1

fYear

2002

fDate

26-30 Aug. 2002

Firstpage

723

Abstract

The paper presents a wavelet-based method for medical image enhancement. A transfer function is derived for transferring wavelet coefficients at various multiresolution levels with different weighting values. Applications of the method to digital radiographic images of chest X-rays are shown. Moreover, in order to validate the effectiveness of the proposed method, we compare the results obtained using the wavelet analysis method to that using the conventional fast Fourier transform (FFT) method. The results show that the proposed method is superior to the FFT method in terms of image enhancement.

Keywords

fast Fourier transforms; image enhancement; medical image processing; transfer functions; wavelet transforms; FFT; chest X-rays; digital radiographic images; fast Fourier transform; medical image enhancement; transfer function; wavelet analysis; wavelet coefficients; Biomedical imaging; Fast Fourier transforms; Image analysis; Image enhancement; Radiographic image enhancement; Radiography; Transfer functions; Wavelet analysis; Wavelet coefficients; X-rays;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, 2002 6th International Conference on

Print_ISBN

0-7803-7488-6

Type

conf

DOI

10.1109/ICOSP.2002.1181158

Filename

1181158