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CapTable and CapShelf - Unobtrusive Activity Recognition Using Networked Capacitive Sensors

, , , and . Proc. Fourth International Conference on Networked Sensing Systems INSS '07, page 85--88. (2007)
DOI: 10.1109/INSS.2007.4297395

Abstract

In this paper, we introduce two pieces of activity-sensing furniture using networked capacitive sensors. CapTable and CapShelf are two example applications for activity detection and context acquisition realized with the CapSensing Toolkit. Both instances are representatives of a greater class of scenarios where networked sensing can compete with other technologies. CapTable is a simple wooden table equipped with capacitive sensors. Hand and body motion can be tracked above and around the table with high resolution. Additionally, conductive and non- conductive objects can be tracked and discriminated. The same features apply to CapShelf, a shelf that can monitor where people are reaching, and partially track the amount of items still in the shelf. We argue, that capacitive sensors provide huge benefits for real-world, privacy-sensitive, and unobtrusive data acquisition and implicit human-computer interaction.

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