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Augmented reality
- 1. Augmented reality Dept. of Electronics and Instrumentation Engineering Govt. College ofTechnology, Coimbatore
- 2. Augmented Reality is BasicallyTerminatorVision
- 3. Real scene + computer generated data (or) graphics = Augmented Reality
- 4. On the other handVirtual reality provides full immersion. It does not “augment” reality.
- 6. Types of augmented reality 1.Marker-based Augmented reality
- 8. 3.Position based Augmented Reality
- 9. Things needed to create Augmented reality: 1. Smartphone 2. Augmented Reality app
- 10. Marker based Augmented Reality • Requires a special Marker • Used in Advertising
- 11. 1.Input 2. Marker Detection Steps involved in marker based augmented reality Using algorithms like Four corner test, Size test ThroughVideo
- 12. 3. Marker Identification and Rendering Steps involved in marker based augmented reality • The detected marker is identified by matching it with other markers in a database. • UsingTransformation Matrix 3D objects are aligned perfectly on the marker
- 13. Marker less Augmented Reality
- 14. Steps involved in marker less augmented reality 1.Feature point detection 2.Plane extraction SLAM – Simultaneous Localization and Mapping Harris Corner Detector
- 15. 3.Tracking and Rendering • the distance and orientation of the extracted plane with respect to the camera is calculated using various algorithms.(Eg: SIFT).This is called Tracking. • The 3D object is rendered on the plane using rendering software.
- 16. Marker less AR can be used for Interactive learning
- 17. Position based augmented reality Provides real time information
- 18. Steps Involved: • Position of the user is found usingGPS • Information about position is gathered from the internet • Gathered information is rendered on the screen using suitable rendering software
- 19. Most popular augmented reality apps Nokia City Lens