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SUMMARY:Ubiquitous Sensing with Light - Xia Zhou - Dept of Computer Scienc
 e Dartmouth College 
DTSTART:20170517T151500Z
DTEND:20170517T161500Z
UID:TALK71867@talks.cam.ac.uk
CONTACT:David Greaves
DESCRIPTION:The ability to sense what we do and how we behave is crucial t
 o help detect diseases\, diagnose early symptoms of health issues\, and fo
 ster healthier lifestyles. Existing sensing technologies\, however\, have 
 significant drawbacks. They either are intrusive — we have to constantly
  carry or wear sensing devices  (e.g.\, Apple Watch\, Fitbit)\, or present
  serious privacy risks by capturing raw images\, or are vulnerable to elec
 tromagnetic interference.\n\nIn this talk\, I will present a radically dif
 ferent approach to unobtrusive human sensing\, which exploits the ubiquito
 us light around us as a sensing medium that senses and responds to what we
  do\, without requiring any on-body devices nor any cameras. I will first 
 present our efforts on reconstructing a 3D human skeleton in real time usi
 ng purely the light around us. Empowered by Visible Light Communication (V
 LC)\, our system uses shadows created by a human body from blocked light t
 o reconstruct the 3D skeleton. I will then present our ongoing efforts on 
 fine-grained sensing with light\, including reconstructing 3D hand gesture
 s and tracking user gaze. I will conclude with future directions.  
LOCATION:Lecture Theatre 1\, Computer Laboratory
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