Patent ID: 11892563
Assignee: PROJECT CANARY, PBC
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 19:
20. A method of detecting human presence in an outdoor monitored site, the method comprising:
receiving from a horizontal antenna array, a plurality of two-dimensional (2D) horizontal heatmaps, wherein each of the plurality of two-dimensional (2D) horizontal heatmaps is a projection of RF signal reflections on a plane parallel to a ground associated with the outdoor monitored site;
receiving from a vertical antenna array, a plurality of two-dimensional (2D) vertical heatmaps, wherein each of the plurality of two-dimensional (2D) vertical heatmaps is a projection of RF signal reflections on a plane perpendicular to the ground associated with the outdoor monitored site; inputting the plurality of two-dimensional (2D) horizontal heatmaps and the plurality of two-dimensional (2D) vertical heatmaps to a student network of a machine learning network;
inputting image data synchronized with the plurality of two-dimensional (2D) horizontal heatmaps and the plurality of two-dimensional (2D) horizontal heatmaps to a teacher network of a machine learning network, wherein the teacher network is to provide cross-modal supervision for the student network; and
receiving, from the student network, predicted key-point confidence maps, corresponding to one or more anatomical parts of a human body.