Enhancement and associative restoration of electronic portal images in radiotherapy

Author

Krell, G. ; Tizhoosh, H.R. ; Lilienblum, T. ; Moore, C.J. ; Michaelis, B.

Author_Institution

Inst. for Meas. Technol. & Electron., Magdeburg Univ., Germany

fYear

1997

fDate

11-13 Jun 1997

Firstpage

104

Lastpage

108

Abstract

The Electronic Portal Imaging Device (EPID) uses a high-energy treatment beam to project the body interior of a patient on to a fluorescent screen that is scanned by a camera. Because of the imaging physics, the unprocessed images are very poor in quality. This paper presents an approach that combines an associative restoration algorithm with a fuzzy image enhancement technique. By fusing the electronic portal image with a pre-treatment captured simulator image, a higher image quality than by conventional techniques is achieved

Keywords

associative processing; content-addressable storage; diagnostic radiography; fuzzy logic; image enhancement; image restoration; medical image processing; radiation therapy; sensor fusion; Electronic Portal Imaging Device; associative restoration algorithm; camera; fluorescent screen scanning; fuzzy image enhancement technique; high-energy treatment beam; image projection; image quality; imaging physics; patient body interior; pre-treatment captured simulator image; radiotherapy; Associative memory; Biomedical imaging; Energy measurement; Image enhancement; Image restoration; Medical diagnostic imaging; Medical treatment; Physics; Portals; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer-Based Medical Systems., 1997. Proceedings., Tenth IEEE Symposium on

Conference_Location

Maribor

ISSN

1063-7125

Print_ISBN

0-8186-7928-X

Type

conf

DOI

10.1109/CBMS.1997.596417

Filename

596417