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Topic: Tracking Overlapping Objects
Replies: 10   Last Post: Aug 14, 2012 9:40 AM

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 Keegan Posts: 3 Registered: 7/6/11
Tracking Overlapping Objects
Posted: Jul 6, 2011 3:09 AM

Dear Experts,

I am a student currently attempting an Object-tracking project where we have to track and count the number of birds from a recorded footage. My main reference for attempting this project is MATLAB's own demo on optical flow tracking for vehicles:
http://www.mathworks.com/products/computer-vision/demos.html?file=/products/demos/shipping/vision/videotrafficof.html

The problem I've encountered is that whenever two birds fly in close proximity or overlap each other, the bounding boxes treat them as one bird based on the blobs sticking into each other, resulting in a big bounding box that encapsulates both birds and bringing the bird counter down by 1.

My question is how do I segment two birds from each other despite them overlapping each other and maintain the bird count as it is? Would be better if an example code be presented to better illustrate solution.

http://imageshack.us/photo/my-images/199/screenshotrg.jpg/
The above is a screenshot of the problem I described previously. The overlapping birds in question are circled in red.

I am very new to this computer vision and tracking field, so there are many basic things I do not understand. Any advice on how solving this problem would be greatly appreciated. Thank you.

Date Subject Author
7/6/11 Keegan
7/6/11 ImageAnalyst
7/6/11 bjoern voss
7/6/11 Keegan
7/6/11 ImageAnalyst
7/15/11 Muzaffar
8/12/11 Keegan
8/12/11 Jeff
4/26/12 yoss
5/10/12 Dima Lisin
8/14/12 Yu