An improvement of restoration method using digital filter for medical X-ray images contaminated by quantum mottles with varying variance

Author

Ikuta, Akira ; Ohta, Mitsuo ; Kodera, Yoshie ; Fujita, Minoru ; Wada, Takuro

Author_Institution

Fac. of Eng., Hiroshima Univ., Japan

fYear

1991

fDate

28 Oct-1 Nov 1991

Firstpage

2491

Abstract

A novel restoration method for X-ray images with quantum mottles is proposed by considering the physical formation process of X-ray images. More specifically, as a restoration method for quantum mottles, a digital filter of the stochastic type considering the property of quantum mottles with varying variance is derived on the basis of the Bayes theorem matched to recursive image processing. In order to confirm the effectiveness of the proposed method, it is applied to an actual medical image

Keywords

X-ray applications; diagnostic radiography; digital filters; image processing; stochastic processes; Bayes theorem; digital filter; medical X-ray images; quantum mottles; recursive image processing; restoration; stochastic filter; varying variance; Biomedical imaging; Degradation; Digital filters; Image processing; Image restoration; Medical diagnosis; Medical diagnostic imaging; Quantum mechanics; Wiener filter; X-ray imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on

Conference_Location

Kobe

Print_ISBN

0-87942-688-8

Type

conf

DOI

10.1109/IECON.1991.238953

Filename

238953