mobile augmented reality - 123seminarsonly.com · 2012-02-14 · mobile augmented reality virtual...

Technische Universität Berlin Open Communication Systems 1

Mobile Augmented Reality

Hai To

2Technische Universität Berlin Open Communication Systems

Agenda

What is mAR?➔A brief history of AR➔Definition & Taxonomy

Where to find mAR?➔Former approaches➔Current use cases➔Future Scenarios

How to make mAR?➔Software & Hardware➔Android for the win➔Technology is the key

IntroductionWhat is mAR?

Where to find mAR?

How to make mAR?

Conclusion


What is mAR?


Where to find mAR?

How to make mAR?

Conclusion


Background

●AR derived from Virtual Reality➔term was coined by engineers at Boeing(1990, Thomas Caudell & David Mizell)

➔VR already used in aircraft manufacturing(Boeing 777 completely designed through 3D CAD)

➔AR developed to aid assembling wiring harness

➔prototype has been realised with support of DARPA & Honeywell Military Avionics Division

➔AR-system proved to be 25% to 50% faster than conventional methods


Where to find mAR?

How to make mAR?

Conclusion


Definition

“to augment” = to increase, make larger or supplement “reality” = (subjective perception of) the real world ↳“AR” = extended perception of one's surrounding through ancillary information

●Augmented Reality is a computing system:

➔combining reality with virtual objects➔interacting in real-time➔registered in 3D(Ronald T. Azuma)


Where to find mAR?

How to make mAR?

Conclusion


Taxonomy

●Augmented Reality or Virtual Reality

utilising real vs generating artificialsurrounding environment

➔compartmentation depends on the referenced world model

➔independent from the perceived images(Paul Milgram)


Where to find mAR?

How to make mAR?

Conclusion


Where to find mAR?


Where to find mAR?

How to make mAR?

Conclusion


Former Approaches

●MARS – at Columbia University:➔mobile computing system combining HMD, handheld and wireless communication technology

➔developed to help navigate and receive information about points of interest

➔motivation: create an advanced, context-aware, mobile experience; define reusable interface components

➔challenges: ergonomics (miniaturisation, power supply, thermal dissipation); robustness & outdoor usability; commercialisation


Where to find mAR?

How to make mAR?

Conclusion


Current Use Cases

●Location based mAR:➔e.g. Wikitude, Layar, TwittARound➔utilizes build in GPS and electronic compass system for tracking

➔ancillary information for POIs shown on display

●mAR Gaming:➔e.g. Arhrr, Ghostwire, Treasure Hunting➔uses tag recognition for tracking➔window to another world


Where to find mAR?

How to make mAR?

Conclusion


• The Astonishing Tribe in Malmö, Sweden

• Android based

• uses the Flickr facial recognition technologyprovided by Polar Rose

Smartphone Apps

TAT Augmented ID


Where to find mAR?

How to make mAR?

Conclusion


Future Scenarios


Where to find mAR?

How to make mAR?

Conclusion

U-Cities

* total inter-connectedness

* largest integrated

technology testbeds

* 297 Mio RFID research

centers

* personal smartcard for purchases &

access


How to make mAR?


Where to find mAR?

How to make mAR?

Conclusion


Mobile Platforms


Where to find mAR?

How to make mAR?

Conclusion

●Software libraries:

➔ARToolKit (C/C++)

➔Studierstube ES (C/C++)

●OS-market-share:

➔D’Fusion (TI)➔AndAR, mixare➔DRAFT (TUM)➔ARML (Mobilizy)

Worldwide: Smartphone Sales to End Users by Operating System, 2008 (Gartner)

52%

17%

12%

8%8%2%1%

SymbianRIMWindows MMac OS XLinuxPalm OSOther


Android

●“Softwarestack”➔Mobile OS + Middleware + Key Applications

➔creation + emulation + debugging tools

➔APIs, APIs, APIs➔free documentation

➔online market place

➔open source


Where to find mAR?

How to make mAR?

Conclusion

●mAR relevant:➔Sensor Manager➔Location Manager

➔Surface Manager

➔OpenGL + SGL API

➔Camera + Geomagnetic Field API

Linux Kernel

Libraries RT

ApplicationsFramework

Applications


Android

●benefits: ➔licensing➔developer freedom

➔hardware options

➔standardisation

➔multi tasking➔component reuse

➔easy customizability

➔big community➔momentum

●concerns:➔limited commercial distribution on marketplace

➔internationalisation and localisation

➔premature

➔security➔privacy➔fragmentation


Where to find mAR?

How to make mAR?

Conclusion


Technologies

●Key technologies:

➔GPS localization(indoor, precision)

➔Head tracking(realtime, fluent)

➔Display(glare, contrast)

➔Computer(processing, miniaturization)

➔Network(QoS, speed)

●Add-ons: ➔haptic Displays➔RFID Readers➔3D Display➔acoustic/ aromatic augmentations

➔Projector...


Where to find mAR?

How to make mAR?

Conclusion


Conclusion


Where to find mAR?

How to make mAR?

Conclusion


Prospect

●mAR present state: in its infancy➔comprehensive research environment➔advanced development status➔early commercialisation stage

●barriers: content, critical mass, technology

●mAR promises: host of everyday uses

➔endless virtual information in evanescent real objects

➔seamless mergence of reality and virtuality

➔personalised information management & filteringIntroduction

What is mAR?

Where to find mAR?

How to make mAR?

Conclusion


Challenges

●social issues:➔technological discrepancy → informational discrimination

➔privacy, autonomy, liability

●systematic issues:➔lot of challenging systems → difficult to unify information access


Where to find mAR?

How to make mAR?

Conclusion



Where to find mAR?

How to make mAR?

Conclusion

Q&A

Mobile Augmented RealityVirtual Reality, Azuma & Milgram

RV-Continuum,MARS, Wikitude, Arhhr, TAT AID, U-Cities

wearble vs mobileARToolKit, ARML, Studiestube

Symbian, Apple, Androidkey technologies, add-ons

barriers, promiseschallenges

mobile augmented reality - 123seminarsonly.com · 2012-02-14 · mobile augmented reality virtual...

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