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. Author manuscript; available in PMC: 2007 Jan 1.
Published in final edited form as: IEEE Trans Med Imaging. 2006 Oct;25(10):1272–1283. doi: 10.1109/42.896783

Fig. 1.

Fig. 1

Shoulder phantom study with 10 mA protocol. (a): A conventional FBP reconstructed image using the Hanning filter with cutoff at 80% Nyquist frequency. (b): Iterative PRWLS+SOR reconstructed image with β =1×10−4. (c): A standard FBP reconstructed image from the iterative GS-PRWLS smoothed sinogram with β =1×10−8. (d): A standard FBP reconstructed image from the analytical KL-PWLS filtered sinogram with β =200.