Removal of image intensifier veiling glare by mathematical deconvolution techniques.
X-ray images acquired with an image intensifier detector system suffer from veiling glare, a low-frequency degradation described by a point spread function (PSF). The PSF has two experimentally determined parameters unique to a given image intensifier. This information is utilized to deconvolve the degradation from digitally acquired images. Results demonstrate a significant increase in contrast ratio of high-contrast objects after deconvolution and image restoration.
D000818:Animals; D003201:Computers; D005374:Filtration / Q000295:instrumentation; D006801:Humans; D008433:Mathematics; D011856:Radiographic Image Enhancement; D014963:X-Ray Intensifying Screens