günter alce, ph.d. candidate : gunteralce · augmented reality (ismar 2010). seoul, korea. 69...
TRANSCRIPT
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Augmented Reality
Günter Alce, Ph.D. candidate
: gunterAlce
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Günter Alce
• Industrial Ph.D. - AR Visor interaction
• Sony Mobile Communications
• Department of Design sciences
• What should the AR Visor offer the user in different
contexts?
• How to combine different interaction techniques, such
as gestures, gaze and speech?
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Overview
• Introduction of AR
• Evolution of AR
• Some applications areas
• AR technologies
• My research
• Summary
• HITLabNZ
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What is augmented reality?
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Definition
Augmented reality is a technology which:
1. Combines real and virtual
2. Interactive in real time
3. Registered in 3D
Azuma (1997)
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The evolution of
Augmented Reality hardware
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Steve Mann
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The evolution of AR hardware
• Generation “Kit bag”
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The evolution of AR hardware
• Generation “Hand bag”
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Keyhole AR
• Limited view
• Awkward interaction
• Relying on a camera sensor
• Limited use
• Ergonomic issues
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The evolution of AR hardware
• Generation “No bag”
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“…uses a holographic waveguide… we have developed in partnership with Nokia”
“They are scheduled to be delivered in 2013… between 350 to 600 dollars” “We want these to be a consumer product” “It connects to any mobile device through a HDMI cable”
Vuzix at CES 2012
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Upcoming glasses
•Olympus MEG4.0
•Project Glass
•Vuzix M100
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Project glass (2012)
• Video clip
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What could it be used for?
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Some application areas
• Marketing
• Entertainment
• Education
• Assistance
• Medical Applications
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Marketing
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Marketing
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Entertainment
Nerdherder ARDefender
Danger copter AR Blitz
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Entertainment
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Entertainment (Experience for tourists)
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Entertainment (Experience for tourists)
HistoriskaSkyltar P l a t s b a s e r a d h i s t o r i a i ö g o n b l i c k e t
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Education
Iulian Radu
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Assistance
ionRoad
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Medicine
M. Billinghurst
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AR Technologies
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AR Technologies
• AR Devices
• AR Interaction
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AR Devices
• Displays
• Input devices
• Tracking
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Displays
AR Devices
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Displays
Azuma 1997
Video see-through Optical see-through
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Video see-through
• Better consistency between real and virtual views • Better handling of occlusion problems
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Optical see-through
• Natural, instantaneous view • Zero parallax
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Optical see-through
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Projection-based displays
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OmniTouch
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AR Devices
• Displays
• Input devices
• Tracking
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Input devices
• Gloves
• Wristband (ReachMedia)
• Phone as pointing device
• Gestures
• Speech
• Gaze interaction
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AR Devices
• Displays
• Input devices
• Tracking
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Tracking
• The act of aligning the virtual content with the real
world view
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Tracking
• Sensor-based
• Vision-based
• Hybrid
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Sensor-based tracking
Technology Range (m) Precision (m)
• Accelerometers 1 0,1
• Inertial 1 0,01
• Magnetic 1 0,01
• WiFi 100 1
• RFID: active 20-100 0,5
• RFID: passive 0,05-5 0,5
• GPS ∞ 5
Table from Handbook of AR - An Overview
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Micro Electro-Mechanical Systems (MEMS)
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Tracking
• Sensor-based
• Vision-based
• Hybrid
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Vision-based tracking
• Marker-based
• Markerless
• Feature-based
• SLAM
• PTAM
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Marker-based tracking
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Vision-based tracking
• Marker-based
• Markerless
• Feature-based
• SLAM
• PTAM
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Feature-based tracking
Detecting feature points
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SLAM and PTAM
Simultaneous Localization and Mapping (SLAM)
Parallel Tracking and Mapping (PTAM)
Video clip
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Tracking
• Sensor-based
• Vision-based
• Hybrid
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Hybrid
Camera
Accelerometer, gyroscope & compass
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AR Technologies
• AR Devices
• AR Interaction
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Interaction
ISMAR 2011 papers and posters User interfaces, interaction, human
factors, ergonomics, perception: ≈14%
ISMAR 2011
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Interaction styles
• Tangible AR
• Collaborative AR
• Hybrid AR
• Multimodal AR
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Tangible AR
• The user can manipulate the virtual information
through physical objects
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Collaborative AR
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Hybrid AR
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Multimodal AR
• Gestures
• Speech
• Touch
• Gaze
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Where are we today?
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Perceptually correct augmentation remains a crucial challenge. ”
Ernst,, Kruijff, Swan, J. E., & Steve,, Feiner (2010). Perceptual Issues in Augmented Reality Revisited. IEEE International Symposium on Mixed and Augmented Reality (ISMAR 2010). Seoul, Korea.
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Vergence-accomodation conflict
Eyes focusing at a distance that differs from the
point of visual convergence
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Definition
Augmented reality is a technology which:
1. Combines real and virtual
2. Interactive in real time
3. Registered in 3D
Azuma (1997)
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Research
• What should the AR Visor offer the user in
different contexts?
• How to combine different interaction techniques,
such as gestures, gaze and speech?
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Attention resources
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What about SONY?
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AR Visor concept (2011)
• Video clip
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Wizard of Oz
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VENTURI – a three year EU project about AR
• A consolidated prototype at the end of
each year
• Evaluated through use cases
• Gaming
• Personal assistant
• Tourism
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Tools - AR SDK
1. Metaio SDK, http://www.metaio.com/
2. Vuforia, https://developer.qualcomm.com/mobile-
development/mobiletechnologies/augmented-reality
3. HITLabNZ, http://hitlabnz.org/index.php/products/mobile-ar-framework
4. AndAR - Android Augmented Reality, http://code.google.com/p/andar/
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Summary of AR
• Mixing real and virtual
• Interaction
• Display
• Tracking
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Master thesis
HITLabNZ, http://hitlabnz.org/
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Thanks for listening!
Questions?