Approaches to Augmented Reality

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.

Augmented Reality Tracking Technologies

1) Image tracking

In this, you need a photo or marker which contains a code and can be compared to a QR Code. Scanning the code you can admire the visualization of your content in 3D. This is the easiest way to create a tracking pattern for your app.

2) GPS/orientation tracking 

This might be useful for companies, shops or tourist destinations. The user can display any location-related information, for example, shops nearby.

3) Object Tracking

It allows using real objects as targets. You need to deposit the 3D data of your target. The app is able to scan not only planar images but also complex 3D objects independently of their size and geometry.

4) Markerless Tracking

In this, you scan the object and sensors within your device measure the object’s direction. Without lodging 3D data you can visualize your content due to the sensors that measure the direction of your tracker.