Use of finite-memory Wiener filters in scintigram processing.
Scintigraphic images are subject to two forms of imperfection: blurring due to the components of the detector (collimator, photomultiplier, analog processing devices) and noise resulting from radioactive disintegration. We use Wiener filters operating within a limited area of the spatial domain in processing these images. After defining statistical models of ideal image and degrading processes, we study the effects of parameters on filter features. Finally, we present examples demonstrating filter performance.
D001417:Background Radiation; D006801:Humans; D008433:Mathematics; D011856:Radiographic Image Enhancement / Q000295:instrumentation*; D011877:Radionuclide Imaging / Q000295:instrumentation*; D013679:Technology, Radiologic