The Classifications Of Augmented Reality

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4.2 Classifications of Augmented reality There are two types of simple augmented reality: marker-based which uses cameras and visual cues, and marker less which use positional data such as a mobile 's GPS and compass. i) Marker based AR Various types of markers are images that can be detected by a camera, and used by the software as the location for virtual assets placed in a scene. Most of them are black and white markers. Simple augmented reality markers can consist of some basic shapes made up of black squares against a white background. More elaborate markers can be created using simple images that are still read properly by a camera, and these codes can even take the form of tattoos. ii) Marker less AR In marker-less augmented reality the image is gathered from the internet and displayed on a particular location (gathered using GPS). The application doesn’t require a marker to display the content. It is more interactive than marker based augmentation. 4.3 AR based approach The feature of the software platform that enables to visualize applications is Vuforia [web based tool] and is given in TABLE 2. TABLE 2: Features of the web based tool Vuforia. Sl. No. Capabilities Type Examples 1. To recognize images and objects Flat images Print media and product packaging 2. Supports geometric shapes classification Multi Targets of JPG/PNG/RGB/ Gray-scale Cascaded Images 3. Mapping physical environment Smart Terrain 3D Mesh Creation A. Extended features • Create devices and
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