Search space reduction in optical tracking
EGVE '03 Proceedings of the workshop on Virtual environments 2003
An affordable optical head tracking system for desktop VR/AR systems
EGVE '03 Proceedings of the workshop on Virtual environments 2003
Reach the virtual environment: 3D tangible interaction with scientific data
OZCHI '05 Proceedings of the 17th Australia conference on Computer-Human Interaction: Citizens Online: Considerations for Today and the Future
Occlusion in mirror-based co-located augmented reality systems
Presence: Teleoperators and Virtual Environments - Special issue: IEEE VR 2005
Virtual Environments: Graphtracker: A topology projection invariant optical tracker
Computers and Graphics
A novel optical tracking algorithm for point-based projective invariant marker patterns
ISVC'07 Proceedings of the 3rd international conference on Advances in visual computing - Volume Part I
Panorama ultrasound for guiding epidural anesthesia: a feasibility study
IPCAI'11 Proceedings of the Second international conference on Information processing in computer-assisted interventions
Visual tracking for seamless 3d interactions in augmented reality
ISVC'05 Proceedings of the First international conference on Advances in Visual Computing
Simultaneous tracking of multiple objects for augmented reality applications
EGMM'04 Proceedings of the Seventh Eurographics conference on Multimedia
EGVE'04 Proceedings of the Tenth Eurographics conference on Virtual Environments
Optical tracking using line pencil fiducials
EGVE'04 Proceedings of the Tenth Eurographics conference on Virtual Environments
Interacting with molecular structures: user performance versus system complexity
EGVE'05 Proceedings of the 11th Eurographics conference on Virtual Environments
GraphTracker: a topology projection invariant optical tracker
EGVE'06 Proceedings of the 12th Eurographics conference on Virtual Environments
Widget manipulation revisited: a case study in modeling interactions between experimental conditions
EGVE'07 Proceedings of the 13th Eurographics conference on Virtual Environments
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In this paper, we describe a new optical tracker algorithmfor the tracking of interaction devices in virtual andaugmented reality. The tracker uses invariant properties ofmarker patterns to efficiently identify and reconstruct thepose of these interaction devices. Since invariant propertiesare sensitive to noise in the 2D marker positions, anoff-line training session is used to determine deviations inthese properties. These deviations are taken into accountwhen searching for the patterns once the tracker is used.