This face recognition technique mainly deals with the differentiation of the human face from the background of the image or from a real time video. It also helps in recording the features of the video. Apart from it, this technique can also be used for the comparison of the database with the face which is being recognized.
The first thing which is recognized by the face detection system is the recognition of the facial expressions with the cognitive state and emotional state recognition too. This is a very established technology when it comes to the surveillance and the security systems. Video coding is also being required in this face recognition system.
The main challenges of this system includes it does not effective in showing the face covered by long hairs or hand along with the aging effects too.