MATLAB: Motion Detection

MATLABmotion detection

When more than one person is moving in a video, is it possible to identify each of the person and draw a rectangle shape around them individually?

Yes.

You can do it using my ABSOR tool ( Download ). So, if you have a matrix of 3 points whose coordinates are known

    A=[xa1,ya1,za1;xa2,ya2,za2;xa3,ya3,za3].'

and some target points after rototraslation of A,

    B=[xb1,yb1,zb1;xb2,yb2,zb2;xb3,yb3,zb3].'

then you can find the rotation/traslation matching A to B with

   params=absor(A,B);
   R=params.R;
   t=params.t;

The background will be calculated once, based upon those training frames.