Biomedical Engineering Reference
In-Depth Information
7.9 Experimental Results
In this section we present a set of results obtained with the methods presented
in Sections 7.5-7.8. The main application context is medical images.
7.9.1 Anisotropic Diffusion
Now, we demonstrated the utility of image diffusion methods in our work. We
take a synthetic 150
×
150
×
150 image volume composed of a sphere with a
radius of 30 and an ellipsoid with axes 45, 60, and 30 inside a uniform noise
specified by the image intensity range 0-150.
Figure 7.13 shows the result for steps (1)-(4) in Section 7.5, applied to
this volume after Gaussian diffusion (Fig. 7.13(a)), and anisotropic diffusion
(a)
(b)
(c)
(d)
(e)
(f )
Figure 7.13: (a) Result for steps (1)-(4) with Gaussian diffusion. ( b) Cross sec-
tions of (a) for slice 40. (c) Cross section of final solution for slice 40. (d) Result
for steps (1)-(4) with anisotropic diffusion. (e) Cross sections of (d) for slice 40.
(f ) Cross section of final solution when using anisotropic diffusion (slice 40).
