Sciweavers

4 search results - page 1 / 1
» Improving the Accuracy of Ultrasound-Based Localisation Syst...
Sort
View
LOCA
2005
Springer
13 years 10 months ago
Improving the Accuracy of Ultrasound-Based Localisation Systems
Abstract. We present an improvement to ultrasound–based indoor location systems like Cricket [1]. By encoding and modulating the ultrasound pulses, we are able to achieve greater...
Hubert Piontek, Matthias Seyffer, Jörg Kaiser
ISMAR
2007
IEEE
13 years 11 months ago
Semi-automatic Annotations in Unknown Environments
Unknown environments pose a particular challenge for augmented reality applications because the 3D models required for tracking, rendering and interaction are not available ahead ...
Gerhard Reitmayr, Ethan Eade, Tom Drummond
ISMAR
2007
IEEE
13 years 11 months ago
Initialisation for Visual Tracking in Urban Environments
Outdoor augmented reality systems often rely on GPS to cover large environments. Visual tracking approaches can provide more accurate location estimates but typically require a ma...
Gerhard Reitmayr, Tom Drummond
ISMAR
2006
IEEE
13 years 10 months ago
Going out: robust model-based tracking for outdoor augmented reality
This paper presents a model-based hybrid tracking system for outdoor augmented reality in urban environments enabling accurate, realtime overlays for a handheld device. The system...
Gerhard Reitmayr, Tom Drummond