An object-oriented 3D graphics toolkit
SIGGRAPH '92 Proceedings of the 19th annual conference on Computer graphics and interactive techniques
Annotating the real world with knowledge-based graphics on a see-through head-mounted display
Proceedings of the conference on Graphics interface '92
Three-dimensional computer vision: a geometric viewpoint
Three-dimensional computer vision: a geometric viewpoint
Improving static and dynamic registration in an optical see-through HMD
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Fast calibration for augmented reality
Proceedings of the ACM symposium on Virtual reality software and technology
Calibration Requirements and Procedures for a Monitor-Based Augmented Reality System
IEEE Transactions on Visualization and Computer Graphics
Calibration-Free Augmented Reality
IEEE Transactions on Visualization and Computer Graphics
Resolving Occlusion in Augmented Reality: a Contour Based Approach without 3D Reconstruction
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
Dynamic registration correction in augmented-reality systems
VRAIS '95 Proceedings of the Virtual Reality Annual International Symposium (VRAIS'95)
Calibration of head-mounted displays for augmented reality applications
VRAIS '93 Proceedings of the 1993 IEEE Virtual Reality Annual International Symposium
Extending the working volume of projection-based mixed reality systems
EGVE '03 Proceedings of the workshop on Virtual environments 2003
Evaluation of Calibration Procedures for Optical See-Through Head-Mounted Displays
ISMAR '03 Proceedings of the 2nd IEEE/ACM International Symposium on Mixed and Augmented Reality
GVE '07 Proceedings of the IASTED International Conference on Graphics and Visualization in Engineering
Comprehensive calibration and registration procedures for augmented reality
EGVE'01 Proceedings of the 7th Eurographics conference on Virtual Environments & 5th Immersive Projection Technology
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Augmented Reality overlays computer generated images over the real world. This requires precise knowledge of the viewing projection of the headmounted display (HMD) and its position. Most of the previously published methods are complicated or use special equipment for the calibration process. We present a collection of calibration methods usable for fast and easy calibration of camera parameters, object/camera to tracker transformations, and image rectification, which do not need additional instrumentation or complicated procedures. They are applicable for both see-through and videobased HMDs and have already been successfully implemented in the Studierstube collaborative augmented environment.