Chair for Computer Aided Medical Procedures & Augmented Reality
Lehrstuhl für Informatikanwendungen in der Medizin & Augmented Reality

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M. Bauer, M. Schlegel, D. Pustka, N. Navab, G. Klinker
Interactive Visualization of the Predicted Accuracy of Marker-Based Optical Tracking Systems
Demonstration at the Fifth IEEE and ACM International Symposium on Mixed and Augmented Reality, Santa Barbara, CA, USA, Oct. 22 - 25, 2006. (bib)

Marker-based optical tracking systems are widely used in aug- mented reality, medical navigation and industrial applications. We propose a model for the prediction of the target registration error (TRE) in these kinds of tracking systems by estimating the fidu- cial location error (FLE) from two-dimensional errors on the image plane and propagating that error to a given point of interest. We have designed a set of experiments in order to estimate the actual parameters of the model for any given tracking system. We present the results of a study which we used to demonstrate the effect of dif- ferent sources of error. The method is applied to real applications to show the usefulness for any kind of augmented reality system. We also present a set of tools that can be used to visualize the accuracy at design time. Feature Point Rigid Object
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