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Edge sharpness and enhancement of electron radiographs (ERGs) produced with powder cloud development
Author(s) -
Stanton L.,
Lightfoot D. A.,
Day J. L.,
Brady L. W.
Publication year - 1975
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.594160
Subject(s) - enhanced data rates for gsm evolution , cloud computing , materials science , radiography , electron , edge enhancement , optics , optical density , electron density , image enhancement , image (mathematics) , physics , computer vision , artificial intelligence , computer science , quantum mechanics , nuclear physics , operating system
Much renewed interest has developed in electrostatic imaging systems. This is partly because of their use of relatively inexpensive materials and their potential for improved diagnostic accuracy—a novel combination of image latitude with great detail contrast. All such systems can exhibit these image characteristics when developed by the generally used “powder cloud” technique or some similar partial development system. We have measured edge sharpness and enhancement of electron radiographs (ERGs) produced with the powder cloud technique. Edge sharpness can be excellent at low image‐density levels, but deteriorates with increasing density. Edge enhancement is also appreciable; it appears to decrease somewhat with increasing image density, but no simple relationship has yet been shown.