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. Author manuscript; available in PMC: 2014 Oct 17.
Published in final edited form as: Proc SPIE Int Soc Opt Eng. 2014 Mar 19;9033:903335. doi: 10.1117/12.2043067

Figure 1.

Figure 1

Digital phantom used for investigation of imaging performance of various reconstruction algorithms. The phantom is comprised of line pair blocks (from 7 lp/cm to 19 lp/cm), a uniform water-equivalent background with a square region-of-interest identified with dotted line used for empirical variance estimates, and a point target identified in a zoomed region that was used for estimating the reconstructed spatial resolution. The phantom is composed of 700x700 0.1 mm voxels.