Device and method for obtaining a vital signal of a subject
US9928607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2014 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Dec 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30232
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a device for obtaining a vital sign of a subject, comprising an interface (20) for receiving a set of image frames of a subject, a motion analysis unit (30) for analyzing at least one measurement area within the image frames of the set of image frames and for characterizing motion of the subject within the set of image frames, a signal extraction unit (40) for extracting photoplethysmographic, PPG, signals from the set of image frames using the characterization of motion of the subject within the set of image frames, and a vital signs determination unit (50) for determining vital sign information from the extracted PPG signals. The motion analysis unit comprises a motion estimation unit (32), a spatial characteristic extraction unit (34), and a motion characterization unit (36).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.