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.

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.

16. Thank You
Questions???