Fusion of data from head-mounted and fixed sensors
IWAR '98 Proceedings of the international workshop on Augmented reality : placing artificial objects in real scenes: placing artificial objects in real scenes
Means and Averaging in the Group of Rotations
SIAM Journal on Matrix Analysis and Applications
ISMAR '02 Proceedings of the 1st International Symposium on Mixed and Augmented Reality
High-fidelity visuo-haptic interaction with virtual objects in multi-modal AR systems
ISMAR '06 Proceedings of the 5th IEEE and ACM International Symposium on Mixed and Augmented Reality
Human Machine Interaction
Multimodal augmented reality in medicine
UAHCI'07 Proceedings of the 4th international conference on Universal access in human-computer interaction: ambient interaction
Increasing camera pose estimation accuracy using multiple markers
ICAT'06 Proceedings of the 16th international conference on Advances in Artificial Reality and Tele-Existence
| Hi-index | 0.00 |
An integral part of every augmented reality system is the calibration between camera and camera-mounted tracking markers. Accuracy and robustness of the AR overlay process is greatly influenced by the quality of this step. In order to meet the very high precision requirements of medical skill training applications, we have set up a calibration environment based on direct sensing of LED markers. A simulation framework has been developed to predict and study the achievable accuracy of the backprojection needed for the scene augmentation process. We demonstrate, that the simulation is in good agreement with experimental results. Even if a slight improvement of the precision has been observed compared to well-known hand-eye calibration methods, the subpixel accuracy required by our application cannot be achieved even when using commercial tracking systems providing marker positions within very low error limits.