Friday, August 19, 2011

Future work

Here's a list of things I would really like to see implemented.
I hope that if I have time over the school year I can experiment with some of these items. If not, then I hope the project will be continued by somebody else.

Important and feasible

  • Probabilistic output of SVMs
    • Design a more reliable function, or maybe find another library for SVMs to do probabilistic output. The current implementation was rushed and is naive.
    • Switch to one-against-one SVM and see if performance improves
  • Graphical user interface and visual representation of results.
Important and exploratory
  • Extending current system to original images with wings
    • I did this very briefly and was able to achieve about 75% accuracy. This is just a rough estimate. There is a lot of room for creativity in solving this particular problem and I'll discuss a few ideas. The main idea is to do some sort of pre-processing or feature extraction to crop out the wasp body.
      • Part-based detection by training on wasp bodies using SVMs
      • Bilateral symmetry detection, centroids, other geometrical symmetry
      • Identify wings and then segment out or ignore
      • Any other ideas for "ignoring" the wings at feature extraction stage
  • Finding optimal values for tuning parameters (almost all hard-coded numbers were chosen manually, and not automatically optimized).
I will edit this list as things come to mind.

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