title: People counting using OpenCV
body: <p>I'm starting a search to implement a system that must count people flow of some place.
   The final idea is to have something like <a href="http://www.youtube.com/watch?v=u7N1MCBRdl0" rel="noreferrer">http://www.youtube.com/watch?v=u7N1MCBRdl0</a> . I'm working with OpenCv to start creating it, I'm reading and studying about. But I'd like to know if some one can give me some hints of source code exemples, articles and anything elese that can make me get faster on my deal.</p>
  
  <p>I started with blobtrack.exe sample to study, but I got not good results.</p>
  
  <p>Tks in advice.</p>