Sustained logging and discrimination of sleep postures with low-level, wrist-worn sensors

  • Authors:
  • Kristof Van Laerhoven;Marko Borazio;David Kilian;Bernt Schiele

  • Affiliations:
  • TU Darmstadt, Germany;TU Darmstadt, Germany;TU Darmstadt, Germany;TU Darmstadt, Germany

  • Venue:
  • ISWC '08 Proceedings of the 2008 12th IEEE International Symposium on Wearable Computers
  • Year:
  • 2008

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Abstract

Using off-the-shelf Global Positioning System (GPS) units, we reconstruct buildings in 3D by exploiting the reduction in signal to noise ratio (SNR) that occurs when the buildings obstruct the line-of-sight between the moving units and the orbiting satellites. ...