Fully Automated and Stable Registration for Augmented Reality Applications

We present a fully automated approach to camera registration for Augmented Reality systems. It relies on purely passive vision techniques to solve the initialization and realtime tracking problems, given a rough CAD model of parts of the real scene. It does not require a controlled environment, for example placing markers. It handles arbitrarily complex models, occlusions, large camera displacements and drastic aspect changes. This is made possible by two major contributions: The first one is a fast recognition method that detects the known part of the scene, registers the camera with respect to it, and initializes a real-time tracker, which is the second contribution. Our tracker eliminates drift and jitter by merging the information from preceding frames in a traditional recursive tracking fashion with that of a very limited number of key-frames created off-line. In the rare instances where it fails, for example because of large occlusion, it detects the failure and reinvokes the i...

• Type: Conference
• Year: 2003
• Where: ISMAR
• Authors: Vincent Lepetit, Luca Vacchetti, Daniel Thalmann, Pascal Fua
• Keywords: Augmented Reality, Camera, Example Placing Markers, ISMAR 2003, Large Camera Displacements