title: Pedestrian Detection with unique identifier
body: <p>Hi I am currently using OpenCV implementation of HOG and Haar Cascade to perform pedestrian detection and bounding them on a video feed. </p>
  
  <p>However, I want to assign an unique id (number) for every pedestrian entering the video feed with the id remains the same until the pedestrian leaves the video feed. Since frames are processed one after another without regard of previous frame I wasn't sure how to implement this in the simplest but effective way possible.</p>
  
  <p>Do I really need to use tracking algorithm like camshift or Kalman in which I have no knowledge about and could really use some help. Or is there any simpler way to achieve what I want?</p>
  
  <p>P/S: This <a href="http://www.youtube.com/watch?v=5uCbEvXL94Q" rel="nofollow">video</a> is what I wanted to achieve. In fact I posted a similar question here before but that was more towards the detection techniques and this is towards the next step of assigning the unique identifier. </p>