Accurate registration between real and virtual objects is crucial for augmented reality applications. Existing tracking methods are individually inadequate: magnetic trackers are inaccurate, mechanical trackers are cumbersome, and vision-based trackers are computationally problematic. We present a hybrid tracking method that combines the accuracy of vision-based tracking with the robustness of magnetic tracking without compromising real-time performance or usability. We demonstrate excellent registration in three sample applications. CR Categories and Subject Descriptors: I.3.7 [Three-Dimensional Graphics and Realism]: Virtual Reality, I.3.1: [Hardware Architecture]: Three-dimensional displays, I.3.6 [Methodology and Techniques]: Interaction techniques. Additional Keywords and Phrases: Augmented reality, stereo video see-through head-mounted display, frame buffer techniques, registration, calibration. 1 MOTIVATION While the advent of Head-Mounted Displays (HMDs) and affordable real-ti...
Andrei State, Gentaro Hirota, David T. Chen, Willi