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. Author manuscript; available in PMC: 2010 Apr 9.
Published in final edited form as: IEEE Trans Med Imaging. 2010 Mar;29(3):583–597. doi: 10.1109/TMI.2009.2022086

Fig. 6.

Fig. 6

Showing the 3-D vessel phantom (512 × 512 × 100 × 8-bit) used for our experiments. (a) Maximum-intensity projection displayed using the colormap (grayscale units) shown on the left. The phantom was designed to simulate varying diameters, intensity values, and the presence of spectral unmixing artifacts (faint blobs in the background). (b) 3-D surface rendering of the phantom’s vessel structure. (c) Slice 19 of the phantom displayed using the colorscale on the left to show the hollow nature of the vessels. (d) Slice 19 data shown with added noise (Gaussian, σ = 90).