Device for characterizing the actimetry of a subject in real time
US12153126B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 7, 2020 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Nov 24, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/0446
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention discloses a device (1) for characterizing in real time the actimetry of a subject, having: a radar (2) emitting and receiving radar signals, and having a software interface for configuring the shape of the signal emitted; processing and computing means (3) coupled to the radar (2), having a trained classifier (3a) using a database, said processing and computing means (3) being configured to perform in real time: —a capture of color micro-Doppler images (6) having several color channels (R, V, B), each having micro-Doppler signatures (6a) with color pixels the value of which is a function of a reflectivity and a speed of the subject; —a processing of the micro-Doppler images (6) for: computing a so-called monochromatic image having monochromatic pixels, each having a given monochromatic intensity, on the basis of the color pixels of each color micro-Doppler image; transforming the monochromatic image into a binary image by segmentation, according to a binary luminous intensity threshold, of the monochromatic pixels, producing binary pixels, the value of which is dependent on the chromatic intensity of the monochromatic pixel associated with the binary pixel, with respe…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.