I am sure you must have seen the movie I, Robot or Chappie. After watching the movie, a lot of people would be intrigued by the idea of making a robot that would work to protect and guard you. However, the security systems that are the state of the art can hardly be classified as a robot. In this chapter, we will take a step ahead in the lane of vision processing and make a guard robot. Its purpose would be to guard your gate and if an unknown person comes over to the gate it would start to trigger an alarm. However, the interesting thing is that the robot would not trigger any alarm if a known person comes home. What's more is that it would clear the way and get out of the door area to let you in. Once you are inside, it will automatically be back in its position to guard and get back to work yet again.

How cool would that be? So let's get going and make this robot a reality.