title: Kanade Lucas Tomasi Tracker
body: <p>I was looking into Kanade Lucas Tomasi Tracker in the <a href="http://www.mathworks.com/matlabcentral/fileexchange/47105-detect-and-track-multiple-faces/content/MultiObjectTrackerKLT.m" rel="nofollow">following link</a>. However, I was wondering how the KLT recognizes the new people have entered scene. I know that there is replenishing of bounding boxes every 10 frames, but in case a person say entered in the 5th frame. Does it mean the for his first 5th consecutive frames the person is not captured? If I understand that this threshold can be varied, however there will still be cases when this will happen whats so ever. </p>
  
  <p>Can someone explain if I am getting this wrong please?</p>