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Comments about the tracking algorithm in cvblob (Blob library for OpenCV)

http://code.google.com/p/cvblob/wiki/FAQ#1.4_What%27s_wrong_with_the_tracking_algorithm

"1.4 What's wrong with the tracking algorithm?
In older versions of cvBlob the tracking was unusable. It had bugs and the algorithm needed to be fixed.
The tracking code was rewritten in version 0.9.13 and now it works a lot better, but there is some bugs yet.
Keep in mind that the tracking algorithm in cvBlob is very simple. It's only for testing or fast prototyping.

1.5 What is the tracking algorithm that cvBlob uses?
In the beginning, my tracking algorithm was based on the high level tracking of the paper of A. Senior, A. Hampapur, Y-L Tian, L. Brown, S. Pankanti and R. Bolle called "Appearance Models for Occlusion Handling".
But then I rewrote it again and again.
As I said before, the tracking algorithm it's only for fast prototyping. It is not intended for serious projects. cvBlob's tracking algorithm only takes into account the position and bounding box of the blobs. But a good tracking algorithm need to consider:
The history of the positions of the blob (actually this could be added to cvBlob, as a Kalman filter, or something like that... maybe in the future).
Appearance models (this is outside the bounds of the project): this can be color histograms, shape features,...
This two points depends on the problem that you need to approach, and it's difficult to give a general solution."

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