Biomedical Engineering Reference
In-Depth Information
Source MR image
Target MR image
Figure 8.4: MR images of different subjects. The intensity of tissue classes is
different for source (top) and target (bottom) volume.
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Figure 8.5: Intensity correction using the expectation maximization (EM) al-
gorithm. The corrected source volume is presented, as well as the parametric
intensity correction (to be compared with the identity function). The histogram
has been modeled by five Gaussian distributions (top) and seven Gaussian dis-
tributions (bottom). Points represent the mean of Gaussian laws that model the
histogram.
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