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Spatial resolution-variance tradeoff for different reconstructions in a simulated tomographic system with a 0.34 mm FWHM scintillator blur and a 0.70 mm FWHM source blur. Variance and spatial resolution are shown for PWLS reconstructions using the correlated and uncorrelated noise models and FDK. The square data points in the uncorrelated model dataset are either noise-matched or resolution-matched to the square data point in the correlated model dataset.
