AEL Resources:

"Georgia Tech" Powerpoint Template

ART Support

osgAR

Video Wrapper

resourcepic missing   osgAR

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osgAR requires artSupport and VideoWrapper (see 'Related Links' on the top right)

On-line Reference (created by doxygen)

osgVideo
Texture maps a camera video stream onto the background.
Requires Video Wrapper (see 'Related Links' on the top right)
available
osgExtension
Extends basic osg nodes so that they are useful to AR. available
osgTracker
Introduce Tracked Transforms: transformations that are updated either by vrpn servers or artificial markers detected on the video stream.
Requires ART Support and Markers (see 'Related Links' on the top right)
available
osgAR
Specialized AR augmentations to be released
osgEstimate
Implements the real-time registration error estimation

Installing osgAR:

  • download OSG (http://openscenegraph.sourceforge.net/downloads/index.html) (get OSG_OP_OT-0.9.6-2 )
  • Unzip OSG to a directory at the same level as osgAR
  • Rename the OSG folder 'osg' and remove all version references from OpenThreads and Producer directory names.
  • Go to osgVisualStudio and open VisualStudio.dsw. Allow .NET to convert all files. Close the solution.
  • Go to osgARVisualStudio and open VisualStudio.sln (this will open all osg projects as well)
  • There are 4 ael demos:
    • shapes loads the camera in the background and shows same shapes
    • xformART enables ARToolkit detection for panels 1-6
    • xformVRPN instantiates a VRPN client with 3 devices
    • vrpnHeadTracker uses VRPN for head tracking
    • error will be a sample for the registration error algorithm.

Downloads

osgAR_dist.zip

Associated Papers

OSGAR: A Scene Graph with Uncertain Transformations [details]

Spatially Adaptive Augmented Reality [details]

High-Level Tracker Abstractions for Augmented Reality System Design [details]

Supporting Interaction in Augmented Reality in the Presence of Uncertain Spatial Knowledge [details]

Related Links
Video Wrapper
ART Support
Markers

Related Projects

AR Scene Graph

Accounting for Uncertainty in Mobile AR Systems

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