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. Author manuscript; available in PMC: 2012 Dec 30.
Published in final edited form as: Phys Med Biol. 2012 Aug 3;57(17):5399–5423. doi: 10.1088/0031-9155/57/17/5399

Figure 4.

Figure 4

Slices corresponding to the plane z = −2.0-mm through the 3D images of the six-tube phantom reconstructed from (a) the 720-view data by use of the FBP algorithm with fc = 10-MHz; (b) the 720-view data by use of the FBP algorithm with fc = 8-MHz; (c) the 720-view data by use of the FBP algorithm with fc = 6-MHz; (d) the 720-view data by use of the FBP algorithm with fc = 4-MHz; (e) the 720-view data by use of the FBP algorithm with fc = 2-MHz; and (f) the 144-view data by use of the PLS-TV algorithm with β = 0.1. All images are of size 19.8 × 19.8-mm2. The ranges of the grayscale windows were determined by the minimum and the maximum values in each image.