A contrast-detail study of interpolated scatter and glare correction of digital fluoroscopic images.
A scheme to correct for the effects of scattered radiation and veiling glare on the contrast of digital fluoroscopic images was investigated. The correction scheme is based on using spatial interpolation of signals generated in the shadows of a lead disk array, placed in the radiation beam. Contrast-detail plots obtained using the Leeds TO.10 test object, for corrected images were compared with those for unprocessed images, for images processed using digital contrast enhancement and for images acquired using a grid. It was found that substantial improvements in image contrast were obtained using the correction scheme.
Maher
K P
KP
Department of Medical Radiations Science, Royal Melbourne Institute of Technology, Victoria.
Greaves
A W
AW
D005471:Fluoroscopy; D007091:Image Processing, Computer-Assisted