Augmented reality is a technology that enriches the real world with digital information such as GPS data, 3D models, graphics, audio or any other computer-generated sensory inputs by superimposing them on real-world objects seen through a camera on your smartphone, PC, or connected glasses.
Augmented reality is a bridge between real and virtual realms which helps us to understand the world around us.
1) Marker Based AR
It uses black and white markers which serve as activators for additional information when a camera is pointed at an object. These markers are images, such as QR or 2D codes, which contain information and prompt some action when they are sensed by software.
Marker-based augmented reality has been widely used in advertising, such as paper catalogs, magazines, and posters.
2) Sensor Based AR
It doesn’t require black and white markers. Instead, sensor-based augmented reality uses the Internet, cameras, and a whole range of optical and other sensors such as GPS, compasses, accelerometer and gyroscopes that are built into devices. With sensor-based AR, you can point your phone in any direction and see the world augmented with image and media overlays. for example: Snap chat.
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