AEL Projects:

Accounting for Uncertainty in Mobile AR Systems

AIBAS: Adaptive Intent-Based Augmentation System

Alice's Adventures in New Media

AR Scene Graph



Augmented Office Environments

Augmented Reality for Poultry Inspection

Butterfly Effect

DART: The Designers Augmented Reality Toolkit

Four Angry Men

Live-Virtual Training Integration

Media Design for Augmented Reality

Presence and Aura in AR Experiences

Sweet Auburn

The Real-World Wide Web

The Voices of Oakland

Three Angry Men

projectpic missing   AR Scene Graph
OSGAR extends OpenSceneGraph so that it will be suitable to be used for AR applications, by supporting transformations that have uncertainty associated with them. Building on the fundamental notion of uncertain transformation, OSGAR provides programmers with a range of facilities for querying and acting upon estimated registration error. The following are a sample of the kinds capabilities we are adding to the scene graph:
  • Display a video stream as a background (Video AR)
  • Detect artificial markers
  • Connect to different sensors through a VRPN client
  • Handle multiple sensors (combiners)
  • Computer registration error estimates in real time

This work is supported by ONR Contract N000140010361.

Associated Papers

Enylton Machado Coelho. "Spatially Adaptive Augmented Reality" PhD Thesis, Georgia Institute of Technology, 2005 [details]

Enylton Machado Coelho, Blair MacIntyre and Simon J. Julier. "Supporting Interaction in Augmented Reality in the Presence of Uncertain Spatial Knowledge" In the Eighteenth Annual ACM Symposium on User Interface Software and Technology (UIST 2005), October 23-26, 2005, Seattle, Washington. [details]

Enylton Machado Coelho, Blair MacIntyre, and Simon Julier (2004) "OSGAR: A Scene Graph with Uncertain Transformations" To appear in International Symposium on Mixed and Augmented Reality (ISMAR04), November 2-5, 2004, Washington, D.C., USA. [details]

Enylton Machado Coelho and Blair MacIntyre. "High-Level Tracker Abstractions for Augmented Reality System Design” In the International Workshop on Software Technology for AR Systems 2003 (STARS 2003), October 7, 2003, Tokyo, Japan. [details]

Related Links

Related People

Enylton Machado Coelho

Related Resources

Video Wrapper


ART Support

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