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I'm wondering if there is a method to detect two blobs being split or being merged ? is there an OpenCV or CVblob built-in functions to do the task if not any hint will be nice. Thanks.

ELYAS
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If these blobs are moving in video, then it is tracking issue. You can use kalman filter or particle filter ( good tutorial on tracking here: http://www.youtube.com/channel/UCUxiT_SKEUs1oWT6i9P3vPQ ). You also can use optical flow as additional color channels (x and y velosity components) for blobs separation.

Andrey Smorodov
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  • Thanks Andrey, please let me be more precise; a moving person that dropped something and i have to detect the owner, i have done some research and all it seems that Action recognition is the solution, but i was wondering if there is a Blob level solution. – ELYAS Oct 20 '13 at 19:07