Technology is advancing at a brisk pace as many things that were not possible a few years ago are
possible now. Augmented Reality (AR) and Virtual Reality (VR) are a part of these advanced and innovative forms
of technologies that were thought as a part of fiction even a few years ago. But now they are a vital part of the daily
reality. The biggest confusion in the world is the difference between Augmented Reality and Virtual Reality.
Augmented Reality is a synthetic, computer simulated reality or recreation of a real-time environment where a user
can interact with the replicated real environments, whereas Virtual Reality is completely immersive. It immerses the
user by making them feel that they are experiencing the real environment not the simulated one by means of
auditive, visual, and tactual simulations. Virtual Reality (VR) and Augmented Reality (AR) Optical Head-Mounted
Displays (OHMDs) are on the brink of becoming commodity hardware available to the users and is easy to use as a
tool for 3D activities. Some OHMDs include front-facing cameras, enabling Augmented Reality (AR) and Virtual
Reality (VR) functionality. Apart from avoiding clash with the surroundings, interaction with virtual objects may
also be affected by seeing the real environment.