Enhancement and associative restoration of electronic portal images in radiotherapy

Authors:
G. Krell;H. R. Tizhoosh;T. Lilienblum;C. J. Moore;B. Michaelis
Affiliations:
-;-;-;-;-
Venue:
CBMS '97 Proceedings of the 10th IEEE Symposium on Computer-Based Medical Systems (CBMS '97)
Year:
1997

Citing 6
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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.