Toward a visual pedometer

Authors:
Dawei Liu;Qi Shan;Dan Wu
Affiliations:
Joint Research Center in Ubiquitous Computing, Macao Polytechnic Institute;University of Washington;Guangdong Electric, Power Design Institute
Venue:
Proceedings of the 27th Annual ACM Symposium on Applied Computing
Year:
2012

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Abstract

Traditional inertial-sensor-based pedometers are not user-friendly because of the limited availability of inertial sensors in existing mobile computing devices. To remedy the drawback, we propose a visual pedometer scheme. It employs a body-mounted camera to capture images and measures the number of steps based on a time-series analysis of image features. We address several key issues raised in the measurement and demonstrate the applicability of the proposed visual pedometer through a four-second experiment. Compared with traditional inertial-sensor-based pedometers, the proposed visual pedometer could be more user-friendly because of the extensive use of camera phones and digital cameras.