Tracking for Augmented Reality

One of the key requirements for an augmented reality system is a tracking system that determines the user's viewpoint accurately. Many vision-based tracking systems exhibit limited tracking range due to their dependence on pre-calibrated features. We develop an incremental extendible tracking method that integrates pre-calibrated landmarks and unknown natural features for AR tracking. Extendible and robust tracking is achieved by dynamically calibrating prior unknown 3D features. the camera pose is estimated by incrementally integrating partial information provided by each measurement.

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