Computer Science and Information Engineering
Associate Director, Learning Technology,
Digital Learning Center
Note: I am currently migrating my personal web site and this is a work-in-progress. Some information can still be found on my old web site.
We use polarizer and everyday transparent tape to create a lampshade that helps indoor inertial tracking to achieve centimeter-level accuracy.
POLI is a light-to-camera communication system that exploits a novel POliarized Light Intensity modulation scheme to provide reliable communications for a wide range of distances.
CELLI uses a single luminary to project a large number of fine-grained, polarized, yet imperceptible light beams to the ground for indoor positioning. The system can achieve a 2.7cm median 2D error.