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Augmented Reality Systems

Background and Current Research of AR Systems Dana Schlesinger 2006. Augmented Reality Systems. “Combine Real and Computer Generated Information, Interact in Real Time and align virtual objects” (Azuma, 1997) “The World becomes the Interface” (Hollerer, 2004).

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Augmented Reality Systems

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  1. Background and Current Research of AR Systems Dana Schlesinger 2006 Augmented Reality Systems

  2. “Combine Real and Computer Generated Information, Interact in Real Time and align virtual objects” (Azuma, 1997) “The World becomes the Interface” (Hollerer, 2004) Augmented Reality (AR) - Definition

  3. Early 60's: 3D see-through head-worn display (HMD), signs presented on the lab walls (Sutherland, '68). 70-80's: AR research at just a few institutions: US Air Force, NASA, MIT, N. Carolina University etc. Early 90's: AR research at Boeing: instructions for aircraft assembly to construction workers. History of AR systems

  4. The Emergent of Mobile Augmented Reality Systems (MARS): Early 90's: GPS-based outdoor system, presenting navigational assistance to the visually impaired (Loomis). '96: Columbia Touring Machine,outdoors guided campus tour. Since mid-90's: AR experience a renaissance: ubiquitous computing, tangible UI, wearable computing. History – The emergent of Mobile Systems

  5. ERGIS 2.0Enriched Reality Geographic Information System

  6. Features: Wearable system Location-based information system (LBS) 6DOF (six degrees of freeddom): x,y,z,yaw,pitch,roll Indoors and Outdoors system Connection to location-based information (such as froogle, google earth etc..) Client-Server connection Multiple users ERGIS 2.0Enriched Reality Geographic Information System

  7. AR Research Many of the AR publications are "application papers" • Assembly and Construction (e.g. Feiner et al.,1999) • Maintenance and Inspection (e.g. Zhang et al. 2001) • Navigation and Path Finding (e.g. Loomis et al. 1993) • Tourism (e.g. Cheverst et al. 2000)

  8. AR Researchcont.. • Architecture and Archaeology (e.g. Vlahakis et al. 2002) • Entertainment (e.g. Thomas et al. 2000) • Medicine (e.g. Hasvold, 2002) • Military Training and Combat (e.g. Tappert et al. 2001) • Personal Information Management (e.g Feiner, 2002)

  9. "..In spite of the great potential of Mobile AR, .. progress in the field was so far almost exclusively been demonstrated in a growing number of prototypes.." (Hollerer, 2004) Challenges

  10. Improving the AR Display System Challenges

  11. Position Tracking: Sensor fusion (electronic compass, gyroscope, tilt sensor) Camera support Closed-loop tracking vs. Open-loop tracking GPS : from simple GPS to Differential GPS, and Real Time Kinematic GPS WiFi location calculation Challenges

  12. Human Interface Wearable backpack Low power support Physical objects with Location-based metadata Lighting and brightness of the outside, different weather conditions etc.. Additional Challenges

  13. Thank You

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