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Activity monitoring by fusion of optical and mechanical tracking technologies for user behavior analysis

: Bieber, Gerald; Hoffmeyer, André; Gutzeit, Enrico; Peter, Christian; Urban, Bodo


Association for Computing Machinery -ACM-:
2nd ACM International Conference on PErvasive Technologies Related to Assistive Environments, PETRA 2009. CD-ROM : June 9-13, 2009, Corfu, Greece
New York: ACM, 2009
6 S.
International Conference on PErvasive Technologies Related to Assistive Environments (PETRA) <2, 2009, Corfu>
Fraunhofer IGD ()
activity monitoring; sensor fusion; accelerometer; situation-aware assistance; ambient assisted living

Patient monitoring by camera surveillance within the private surrounding suffers on privacy issues as well as high requirements on sensor technology and infrastructure. Because of those limitations there is not much knowledge on user activities and behavior in the home environment. In this paper we introduce a novel concept of local activity monitoring using a very slim infrastructure. The required technical environment consists only of a Wi-Fi-Webcam and a mobile phone. With a bi-modal sensor fusion approach we improve the optical activity monitoring by inclusion of electromechanical movement sensors data taken from a mobile phone. The fusion of data from cameras and mobile acceleration sensors allow for a comprehensive, non obtrusive observation of people which can be used for behavior analysis, reactive assistance and support, and natural interfaces especially for the elderly.