Modelling and Search Software: Basic Tutorial

When you downloaded the tools, you should also have obtained a small annotated dataset, which can be used to experiment.

The data consists of three subdirectories:

• images - containing images
• points - containing points annotated on each image
• models - containing data files describing the models

To build the models, perform the following steps in a command window:

• Move into the models subdirectory
• Run the command "am_build_apm tim_face"
• Run the command "am_build_aam tim_face"
• To view the shape model, run "am_view_shape_model tim_face" (details)
• To view the appearance model, run "am_view_apm tim_face" (details)
• To experiment with searching, run "am_markup tim_face" (details)
  • Load in a separate test set of images: Select "File->Load Image Set", choose "tim_face_test.smd"
  • Expose the search parameter panel: "Props->Search"
  • Press the "Search" button to run the AAM search
  • Select "Move All" in the row of buttons to the left of the main window
  • Drag the model points around using the cursor
  • Re-run the search
  • Move to the next image using the "+1>" button.
  • Play to your heart's content.

Try the following exercises to familiarise yourself with what can be done.