My presentation-Augmented Reality at DDIT Nadiad
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Augmented reality (AR) enhances the real world by overlaying digital information and graphics. The document discusses the history, technology, hardware, software, applications and limitations of AR. Specifically, it covers early innovators like Morton Heilig, the use of head-mounted displays, handheld devices and spatial displays to view AR content, tracking technologies, and applications in areas like medical, education, navigation and social networking. Current limitations include accuracy for outdoor use and dependency on hardware capabilities.
My presentation-Augmented Reality at DDIT Nadiad
- 1. Augmented Reality Integrate your vision
- 2. Flow of Presentation • History • Technology • Hardware – Display – Tracking – Input Devices – Computer • Software and Algorithm • Application • Soft wares
- 3. History Cinematographer MORTON HEILIG who created simulator SENSORAMA with visuals, sound, vibration and smell.
- 4. Technology • Display. • Tracking System. • Devices of Interaction. • Graphic System.
- 5. Display Table and hand projection used as displays in the Augmented Reality using Shader Lamp Technology
- 6. Head Mounted Display • Places physical world and virtual graphics over users view. • Types:- Optical See Through Video See Through • Advantages:- Provides user immersive experience. • Disadvantages:- Inefficiency of devices with 6 DoF
- 7. Hand Held •Employs small display that fits user’s hand. •Opts for Video See Through technology Advantages:- •Portability and massive availability of camera phones Disadvantages:- •Physical constraint to continuously hold the device. •Distorted virtual world compared to real world.
- 8. Spatial Display •Digital projectors to project graphical information on physical objects. •Display is separated from user. •Acronymic as SAR (Spatial Augmented Reality) Advantages:- Distinguished real and virtual reality. No limited resolution or distortion of information. Disadvantages:- Inefficient in sunlight. Requirement of surface for projection.
- 9. Tracking, Input devices and Computer • Tracking the user’s hand and providing 6DoF interaction technique. • A wand with a button and a smart phone that signals its position and orientation from camera images. • The computer analyzes the sensed visual data to synthesize and position augmentations.
- 10. Software and Algorithm • Image registration. • Video tracking from visual odometry. • Steps for Image registration : – Detect interest points. – Detect optical flow. • SLAM (Simultaneous Localization And Mapping)
- 11. Applications of AR Task Support:- Enhance viewing of fetus inside a mother's womb and formation of virtual X-ray •Can include images of hidden objects which can be used in medical applications. • Reduces task complexity in assembly, security and maintenance
- 12. Augmented Reality in Social Networking.
- 13. • Navigation system. e.g. : Driving lessons by heads up display •Education and entertainment. e.g. : outdoor gamings
- 14. Other applications • Advertising. • Devices. • Military & security. • Multi-screen • Architecture. simulation. • Art. • Holodeck. • Sightseeing. • X-ray vision. • Commerce. • Gadgets. • Time. • Automotive. • Performance. • Translation.
- 15. Limitations • Limited GPRS accuracy. • Accuracy should be less than 1 meter.