Michael Tsai
Research Projects
![Lampshade - Augmenting Indoor Inertial Tracking with Light [MobiSys'18]](img/project/lampshade.png)
Lampshade - Augmenting Indoor Inertial Tracking with Light [MobiSys'18]
We use polarizer and everyday transparent tape to create a lampshade that helps indoor inertial tracking to achieve centimeter-level accuracy.
![POLI - Long-Range Visible Light Communications Using Polarized Light Intensity Modulation [MobiSys'17]](img/project/poli.png)
POLI - Long-Range Visible Light Communications Using Polarized Light Intensity Modulation [MobiSys'17]
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 - Indoor Positioning Using Polarized Sweeping Light Beams [MobiSys'17]](img/project/celli.png)
CELLI - Indoor Positioning Using Polarized Sweeping Light Beams [MobiSys'17]
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.