Using Radar to Track Hand Movement

Project Soli

#Technology

Sun, Jun 26th, 2016 11:00 by capnasty NEWS

Google ATAP showcases their Project Soli, a miniature radar capable of detecting hand movement in order to provide touchless gesture interactions.

Soli tracks and recognizes dynamic gestures expressed by fine motions of the fingers and hand. In order to accomplish this with a single chip sensor, we developed a novel radar sensing paradigm with tailored hardware, software, and algorithms. Unlike traditional radar sensors, Soli does not require large bandwidth and high spatial resolution; in fact, Soli’s spatial resolution is coarser than the scale of most fine finger gestures. Instead, our fundamental sensing principles rely on motion resolution by extracting subtle changes in the received signal over time. By processing these temporal signal variations, Soli can distinguish complex finger movements and deforming hand shapes within its field.

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