Superior augmented reality registration by integrating landmark tracking and magnetic tracking
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Dynamic registration correction in augmented-reality systems
VRAIS '95 Proceedings of the Virtual Reality Annual International Symposium (VRAIS'95)
AR2 Hockey: A Case Study of Collaborative Augmented Reality
VRAIS '98 Proceedings of the Virtual Reality Annual International Symposium
Interactive Multi-Marker Calibration for Augmented Reality Applications
ISMAR '02 Proceedings of the 1st International Symposium on Mixed and Augmented Reality
Marker-less Tracking for AR: A Learning-Based Approach
ISMAR '02 Proceedings of the 1st International Symposium on Mixed and Augmented Reality
MR Platform: A Basic Body on Which Mixed Reality Applications Are Built
ISMAR '02 Proceedings of the 1st International Symposium on Mixed and Augmented Reality
Robust Vision-Based Registration Utilizing Bird's-Eye View with User's View
ISMAR '03 Proceedings of the 2nd IEEE/ACM International Symposium on Mixed and Augmented Reality
Proceedings of the 2005 international conference on Augmented tele-existence
A vision-based AR registration method utilizing edges and vertices of 3D model
Proceedings of the 2005 international conference on Augmented tele-existence
A registration evaluation system using an industrial robot
ISMAR '06 Proceedings of the 5th IEEE and ACM International Symposium on Mixed and Augmented Reality
AR baseball presentation system with integrating multiple planar markers
ICAT'06 Proceedings of the 16th international conference on Advances in Artificial Reality and Tele-Existence
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This paper describes a calibration method of markers which are used for registration in MR applications. There have been many vision-based approaches proposed as registration methods in MR. When multiple markers are utilized in a vision-based method, it is necessary that the geometric information of the marker arrangement such as their positions and orientations be known in advance. In this paper, we propose a hybrid method combining the "bundle adjustment method," which is a photogrammetric technique that calculates the geometric information from a set of images, with some constraints on the marker arrangement which are obtained a priori (e.g. the multiple markers are located on a single plane). After considering marker arrangements seen in many MR systems, we summarize some constraints seen in these arrangements. Then, we explain the basic framework of this method as well as a solution method under some practical constraints. We further describe several experiments and their results in order to show the effectiveness of this method.