Title :
An application of robust template matching to user location on wireless infrastructure
Author_Institution :
Dept. of Comput. Sci. & Eng., Washington Univ., Seattle, WA, USA
Abstract :
Instead of using a conventional template matching with the sum of squared distance (SSD) for signal strength matching to provide user location on wireless infrastructure, we propose the use of robust template matching methods for providing robust user location. Our method expects and handles the noisy data common within a wireless setting, and provides the user with relevant information as to the reliability of their location within the system. In our experiments, we compare our method with the conventional SSD based and sum of absolute difference (SAD) based template matching and a state of the art method, support vector machines. Our experimental results show that some of robust template matching methods can outperform compared methods very much.
Keywords :
estimation theory; pattern matching; signal denoising; support vector machines; estimation theory; noisy data; robust template matching methods; robust user location; signal strength matching; sum of absolute difference; sum of squared distance; support vector machines; wireless infrastructure; Application software; Attenuation; Computer science; Frequency; Nearest neighbor searches; Pattern recognition; Radio transmitters; Robustness; Support vector machines; Working environment noise;
Conference_Titel :
Pattern Recognition, 2004. ICPR 2004. Proceedings of the 17th International Conference on
Print_ISBN :
0-7695-2128-2
DOI :
10.1109/ICPR.2004.1334622