Figure 2
From: Development of a brain MRI-based hidden Markov model for dementia recognition
Typical example of brain MR image for each group. Typical examples of brain MR image for each group. Original image after removing the skull (the first row), detected boundary contours (black) of the grey matter (grey) for the same image (the second row), and the corresponding generated time series (the third row). In the third row of the figure, the time series indicates the distances measured from the grey matter center to subsequent outer boundary points.