Show me:

There is a fourth class ("background") at the origin of the feature space (not shown).

Using the applet:

• [New Samples] : generates a new training set.
  The number of samples can be adjusted (but more samples implies slower applet!)

• [Edit] : edits the training set (using the selected proximity graph).
  

• Feature space : shows the training samples, and the areas of the feature space labeled as different classes by a Nearest-Neighbor classifier (each color represents a tissue class).

Advanced features:

• [Clone window] : creates a exact copy of the current window (including the training set).
  Try cloning the window (after generating a training set), and then edit using different proximity graphs in each window. How do the results compare?

• Inside the feature space display area:

  Shift or Ctrl + secondary-mouse-button

  Combined with a vertical mouse movement, changes the zoom/scaling factor. The change in the scaled image dimensions is proportional to the relative vertical mouse drag movement.

  Shift or Ctrl + primary-mouse-button

  Moves the field of view (i.e. does a pan) by following the mouse drag movement.

  The meaning of ``primary'' and ``secondary'' mouse buttons is provided by your Java software, and is platform-dependent -- e.g. on a Unix/X-Windows platform, with the common right-handed mouse configuration, primary is the left button, and secondary is either of the middle or right mouse buttons. On all platforms, the secondary button can be emulated by pressing the Meta or Alt key together with the primary button.

Technical details:

• The training set is automatically generated using a probabilistic anatomical atlas.
• About Beta-skeletons...
• The applet's Java source code is available.