An Approach to Characterizing Spatial Aspects of Image System Blur
Jesse Adams · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 2020
In imaging applications, such as X-ray radiography, the experimental system setup and data capture process introduce system blur and distortion. In images taken with thick scintillators, a spatially varying system blur is observed, requiring a nonstandard approach to blur and distortion estimation and removal. We demonstrate an approach to estimation of local point spread functions using checkerboard radiographs collected at the Naval Research Laboratory and extend that into a map defining the kernel over the camera field of view.