Deblurring of X-radiographs Acquired Using 150-, 300-, and 450-kV Flash X-ray Systems: Compensation for a Finite Source Size

Report No. ARL-TR-8681
Authors: Michael B Zellner and Willard Casey Uhlig
Date/Pages: April 2019; 24 pages
Abstract: This report looks at the capability to deblur X-radiographs that were acquired using 150-, 300-, and 450-kV flash X-ray systems to create sharper radiographic images with greater spatial resolution. The deblurring process includes compensation for image artifacts resulting from the X-ray generation across a finite area instead of from an ideal spot. To compensate for the image artifacts, we first image where the X-rays are generated on the anode using a pinhole camera. We then use this image to compute a point spread function (PSF), which is used to deconvolve the image. Because the X-ray generation is somewhat repeatable, we also construct a set of general PSFs that can potentially be used to enhance spatial resolution of previously acquired radiographic images.
Distribution: Approved for public release
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Last Update / Reviewed: April 1, 2019