This paper introduces a new low-cost pressure-sensitive user input device called "SqueezeOrb". The device is built from an assembly force-sensing resistors embedded in an elastic hand exerciser. A USB-enabled microcontroller continuously samples the sensors, applies a double-exponential noise-reduction filter and streams the resulting "handgrip strength" measurement to an attached host computer at a frequency of up to 1000 Hz. When combined with optical motion-tracking, the SqueezeOrb becomes a pressure-sensing input device for three dimensional interaction.
T. Pintaric, T. Kment, W. Spreicer: "SqueezeOrb: A Low-Cost Pressure-Sensitive User Input Device"; Poster: 15th ACM Symposium on Virtual Reality Software and Technology (VRST 2008), Bordeaux, France; 10-27-2008 - 10-29-2008; in: "Proceedings of the 2008 ACM Symposium on Virtual Reality Software and Technology", ACM Press, New York, NY, USA (2008), ISBN: 978-1-59593-951-7; 269 - 270.
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