The active badge location system
ACM Transactions on Information Systems (TOIS)
A desk supporting computer-based interaction with paper documents
CHI '92 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Cyberguide: a mobile context-aware tour guide
Wireless Networks - Special issue: mobile computing and networking: selected papers from MobiCom '96
Augmented surfaces: a spatially continuous work space for hybrid computing environments
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
The cricket compass for context-aware mobile applications
Proceedings of the 7th annual international conference on Mobile computing and networking
Networked surfaces: a new concept in mobile networking
Mobile Networks and Applications
A Probabilistic Room Location Service for Wireless Networked Environments
UbiComp '01 Proceedings of the 3rd international conference on Ubiquitous Computing
Location Information Management
UbiComp '01 Proceedings of the 3rd international conference on Ubiquitous Computing
A Novel Broadband Ultrasonic Location System
UbiComp '02 Proceedings of the 4th international conference on Ubiquitous Computing
EasyLiving: Technologies for Intelligent Environments
HUC '00 Proceedings of the 2nd international symposium on Handheld and Ubiquitous Computing
Multi-Camera Multi-Person Tracking for EasyLiving
VS '00 Proceedings of the Third IEEE International Workshop on Visual Surveillance (VS'2000)
The Locust Swarm: An Environmentally-Powered, Networkless Location and Messaging System
ISWC '97 Proceedings of the 1st IEEE International Symposium on Wearable Computers
Data Transport on the Networked Surface
LCN '01 Proceedings of the 26th Annual IEEE Conference on Local Computer Networks
LCN '01 Proceedings of the 26th Annual IEEE Conference on Local Computer Networks
PERCOM '03 Proceedings of the First IEEE International Conference on Pervasive Computing and Communications
A relative positioning system for co-located mobile devices
Proceedings of the 3rd international conference on Mobile systems, applications, and services
Real-Time Face Tracking for Context-Aware Computing
Proceedings of the 2005 conference on Artificial Intelligence Research and Development
High accuracy position and orientation detection in two-dimensional communication network
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Media distribution over 2D communication sheet
Proceedings of the international conference on Multimedia
DisplayStacks: interaction techniques for stacks of flexible thin-film displays
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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Networked Surfaces are a novel technology, using contact with physical surfaces such as desks to provide network connectivity for mobile devices. In addition, Networked Surfaces can accurately estimate the positions and orientations of connected devices, combining two key technologies for ubiquitous computing. This paper discusses the algorithm implemented to estimate device locations on the Networked Surface prototype. It then evaluates the location accuracy obtained, using simulations, measurements, and visualisation. Methods of improving the location accuracy are also investigated. Finally, the paper discusses howthe location information provided by Networked Surfaces can be incorporated into context-aware computing applications.