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Augmented Reality: Technology and ApplicationsTRANSCRIPT
Augmented Reality: Technology & Applications
Jithu Sunny
November 20, 2011
Jithu Sunny Augmented Reality: Technology & Applications
What is Augmented Reality?
A Picture is worth a 1000 words..!
Figure: Wikitude drive, an Augmented Reality Navigation system forsmart phones.
Jithu Sunny Augmented Reality: Technology & Applications
What is Augmented Reality?
A Picture is worth a 1000 words..!
Figure: Wikitude drive, an Augmented Reality Navigation system forsmart phones.
Jithu Sunny Augmented Reality: Technology & Applications
What is Augmented Reality?
A Picture is worth a 1000 words..!
Figure: Wikitude drive, an Augmented Reality Navigation system forsmart phones.
Jithu Sunny Augmented Reality: Technology & Applications
Overview of Session
Description
Hardware
How Stuff Works?
Software & Algorithms
A Sample Algorithm
Software Toolkits
Applications
Future
Conclusion
Q&A and TY!
Jithu Sunny Augmented Reality: Technology & Applications
Formal Description
Augmented reality (AR) is a term for a live direct or anindirect view of a physical, real-world environment whoseelements are augmented by computer-generated sensoryinput such as sound, video, graphics or GPS data.
Artificial information about the environment and its objectscan be overlaid on the real world.
Enhances ones current perception of reality.
By contrast, virtual reality replaces the real world with asimulated one.
Jithu Sunny Augmented Reality: Technology & Applications
Hardware
- Processor, camera, display & sensors such as accelerometer, GPS,solid state compass.
Display
HMDHandheldSpatial
Tracking
Input Devices
Jithu Sunny Augmented Reality: Technology & Applications
Display Technique
Head Mounted Display(HMD)
Places AR over theuser’s view of the world.
Either optical seethroughor video seethrough.
Optical see-throughemploys half-silver mirrorsto pass images throughthe lens and overlayinformation to be reflectedinto the user’s eyes.
Increased immersiveexperience.
Jithu Sunny Augmented Reality: Technology & Applications
Display Techniques
Handheld Devices
A smalldisplay in user’s hand.
Apt for portabilityand video see-through.
Disadvantageis that in most cases userhave to hold the deviceout in front of them.
Jithu Sunny Augmented Reality: Technology & Applications
Display Techniques
Spatial Augmented Reality
Uses digital projectors to display graphical information onphysical objects.
The tangible nature of SAR provides the passive hapticsensation.
The user is not required to carry equipment or wear thedisplay over their eyes.
This makes it a perfect candidate for collaboration.
MIT-ian Pranav Mistry’s Sixth sense is all about SAR.
Jithu Sunny Augmented Reality: Technology & Applications
Pranav Mistry Sixth Sense
Figure: Pranav Mistry, Sixth Sense Technology
Jithu Sunny Augmented Reality: Technology & Applications
Tracking
Tracking is following.
May use: Digital cameras, accelerometers, GPS, gyroscopes,compasses, RFID, wireless sensors.
The users can interact with the system using Pinch gloves.
In Sixth sense the finger caps is basically pinch gloves.
Jithu Sunny Augmented Reality: Technology & Applications
Dream come true..!
Jithu Sunny Augmented Reality: Technology & Applications
Dream come true..!
Jithu Sunny Augmented Reality: Technology & Applications
Dream come true..!
Jithu Sunny Augmented Reality: Technology & Applications
How stuff works? - Overview
1 Capture video of the real world.
2 Search through each video frame for markers/target object.
3 Calculate the position of the camera relative to the marker.
4 Draw a computer graphics model from that position.
5 Model is drawn on top of the video of the real world and soappears stuck on the marker.
6 The final output is shown back in the display.
Jithu Sunny Augmented Reality: Technology & Applications
Sample Algorithm
Jithu Sunny Augmented Reality: Technology & Applications
Sample Algorithm Contd.
Jithu Sunny Augmented Reality: Technology & Applications
Software Toolkits
ARToolKit, an open source (dual-license: GPL, commercial)C-library to create augmented reality applications; was portedto many different languages and platforms like Android, Flashor Silverlight.
ArUco, a minimal library for augmented reality applicationsbased on OpenCv; licenses: BSD, Linux, Windows mixare,Open-source (GPLv3) augmented reality engine for Androidand iPhone.
OpenMAR, Open Mobile Augmented Reality componentframework for the Symbian platform, released under EPL
Jithu Sunny Augmented Reality: Technology & Applications
Applications
Jithu Sunny Augmented Reality: Technology & Applications
Applications
Advertising
Task support - Surgery, Underground pipe layout, see thefetus inside the womb..!
Navigation
Industrial - simulate models, reduce real time prototypes.
Military and emergency services - provide info such asmaps, enemy locations, etc.
Architecture - simulate planned construction projects.
Entertainment and education - virtual objects, immersiveambience, deepen the level of perception.
Jithu Sunny Augmented Reality: Technology & Applications
AR in Hollywood!
Jithu Sunny Augmented Reality: Technology & Applications
Future
Augmented reality has the potential to change the waywe see the world in future.
Jithu Sunny Augmented Reality: Technology & Applications
Future
Augmented reality has the potential to change the waywe see the world in future.
Jithu Sunny Augmented Reality: Technology & Applications
Conclusion
Has the potential
Undergoing active development.
Open libraries like ARToolKit.
Yet to witness applications that are so cool AND convenient.
Jithu Sunny Augmented Reality: Technology & Applications
References
Sorce, S.; Augello, A.; Santangelo, A.; Gentile, A.; Genco, A.;Gaglio, S.; Pilato, G.; Interacting with AugmentedEnvironments Pervasive Computing, IEEE Journals 2010
Livingston, Mark A.; Behringer, Reinhold; Kato, Hirokazu;Drummond, Tom; Guest Editors’ Introduction: SpecialSection on The International Symposium on Mixed andAugmented Reality (ISMAR) Visualization and ComputerGraphics, IEEE Journals 2009
Henderson, S.; Feiner, S.; Opportunistic Tangible UserInterfaces for Augmented Reality Visualization and ComputerGraphics, IEEE Journals 2010
Harders, M.; Bianchi, G.; Knoerlein, B.; Szekely, G.;Calibration, Registration, and Synchronization for HighPrecision Augmented Reality Haptics Visualization andComputer Graphics, IEEE Journals 2009
Wikipedia.org http://www.wikipedia.org/
Jithu Sunny Augmented Reality: Technology & Applications
Jithu Sunny Augmented Reality: Technology & Applications
Jithu Sunny Augmented Reality: Technology & Applications