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IEEE Trans. Mob. Comput. 01/2011; 10:669-683.
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Pervasive Computing, 8th International Conference, Pervasive 2010, Helsinki, Finland, May 17-20, 2010. Proceedings; 01/2010
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UbiComp 2010: Ubiquitous Computing, 12th International Conference, UbiComp 2010, Copenhagen, Denmark, September 26-29, 2010, Proceedings; 01/2010
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ABSTRACT: The increasing presence of digital cameras and camera phones brings with it legitimate concerns of unwanted recording situations
for many organizations and individuals. Although the confiscation of these devices from their owners can curb the capture
of sensitive information, it is neither a practical nor desirable solution. In this chapter, we present the design of a system,
called BlindSpot, which prevents the recording of still and moving images without requiring any cooperation on the part of
the capturing device or its operator. Our solution involves a simple tracking system for locating any number of retro-reflective
CCD or CMOS camera lenses around a protected area. The system then directs a pulsing light at the lens, distorting any imagery
the camera records.
06/2009: pages 185-201;
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Pervasive Computing, 7th International Conference, Pervasive 2009, Nara, Japan, May 11-14, 2009. Proceedings; 01/2009
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[show abstract]
[hide abstract]
ABSTRACT: We have developed an approach for whole-house gross movement and room transition detection through sensing at only one point
in the home. We consider this system to be one member of an important new class of human activity monitoring approaches based
on what we call infrastructure mediated sensing, or "home bus snooping." Our solution leverages the existing ductwork infrastructure
of central heating, ventilation, and air conditioning (HVAC) systems found in many homes. Disruptions in airflow, caused by
human inter-room movement, result in static pressure changes in the HVAC air handler unit. This is particularly apparent for
room-to-room transitions and door open/close events involving full or partial blockage of doorways and thresholds. We detect
and record this pressure variation from sensors mounted on the air filter and classify where certain movement events are occurring
in the house, such as an adult walking through a particular doorway or the opening and closing of a particular door. In contrast
to more complex distributed sensing approaches for motion detection in the home, our method requires the installation of only
a single sensing unit (i.e., an instrumented air filter) connected to an embedded or personal computer that performs the classification function. Preliminary
results show we can classify unique transition events with up to 75-80% accuracy.
05/2008: pages 1-18;
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Proceedings of the 2008 ACM Conference on Computer Supported Cooperative Work, CSCW 2008, San Diego, CA, USA, November 8-12, 2008; 01/2008
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Extended Abstracts Proceedings of the 2008 Conference on Human Factors in Computing Systems, CHI 2008, Florence, Italy, April 5-10, 2008; 01/2008
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UbiComp 2008: Ubiquitous Computing, 10th International Conference, UbiComp 2008, Seoul, Korea, September 21-24, 2008, Proceedings; 01/2008
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UbiComp 2008: Ubiquitous Computing, 10th International Conference, UbiComp 2008, Seoul, Korea, September 21-24, 2008, Proceedings; 01/2008
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IEEE Pervasive Computing. 01/2007; 6:56-63.
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Proceedings of the 20th Annual ACM Symposium on User Interface Software and Technology, Newport, Rhode Island, USA, October 7-10, 2007; 01/2007
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Pervasive Computing, 5th International Conference, PERVASIVE 2007, Toronto, Canada, May 13-16, 2007, Proceedings; 01/2007
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Proceedings of the 2007 Conference on Human Factors in Computing Systems, CHI 2007, San Jose, California, USA, April 28 - May 3, 2007; 01/2007
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UbiComp 2007: Ubiquitous Computing, 9th International Conference, UbiComp 2007, Innsbruck, Austria, September 16-19, 2007, Proceedings; 01/2007
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Pervasive Computing, 4th International Conference, PERVASIVE 2006, Dublin, Ireland, May 7-10, 2006, Proceedings; 01/2006
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UbiComp 2006: Ubiquitous Computing, 8th International Conference, UbiComp 2006, Orange County, CA, USA, September 17-21, 2006; 01/2006
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UbiComp 2006: Ubiquitous Computing, 8th International Conference, UbiComp 2006, Orange County, CA, USA, September 17-21, 2006; 01/2006
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Proceedings of the 8th International ACM SIGACCESS Conference on Computers and Accessibility, ASSETS 2006, Portland, Oregon, USA, October 23-25, 2006; 01/2006
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IEEE Pervasive Computing. 01/2005; 4:67-73.
