Virtual Reality vs.   Augmented Reality

1. Virtual Reality

1.1. Virtual reality replaces the real world with the artificial

1.2. The user enters an entirely immersive world and cut off from real world.

1.3. Everything around the user

1.3.1. fabricated by the system.

1.3.2. may display inside

1.3.2.1. a blank room

1.3.2.2. headset

1.3.2.3. other device

1.3.3. allows the user to feel present in the virtual environment.

1.4. Might work for video games and social networking in a virtual environment

1.4.1. Second Life

1.4.2. PlayStation Home.

1.5. Here the Head Mounted Displays (HMD) & input devices block out all the external world from the viewer and present a view that is under the complete control of the computer.

2. Augmented Reality

2.1. Enhances real life with

2.1.1. Artificial images and adds graphics

2.1.2. sounds & smell to the natural world

2.2. The user can interact with the real world, and at the same time can see, both

2.2.1. the real

2.2.2. virtual world

2.3. User is not cut off from the reality.

2.4. AR uses device such as a Smartphone or wearable device.

2.4.1. contains

2.4.1.1. software

2.4.1.2. sensors

2.4.1.3. compass

2.4.1.4. small digital projectors

2.4.2. display images onto real world objects.

2.5. These phones have GPRS

2.5.1. obtains information about a particular geographical location

2.5.1.1. can be overlaid with tags etc. can be imposed onto this location.