Patent ID: 9385768
Filing Date: 2016-07-05
CPC Classification: A61B,F04C,G06K,G06T,H04B

Claim Text:
1. Device for extracting physiological information from remotely detected electromagnetic radiation emitted or reflected by a subject, comprising: an interface for receiving a data stream derived from electromagnetic radiation detected at a location remote from the subject, the data stream comprising at least one sequence of signal samples representing a region of interest exhibiting a continuous or discrete characteristic signal including physiological information indicative of at least one at least partially periodic vital signal, and being comprised of at least two wavelength components, a transforming unit configured for determining and providing at least one coefficient component from the at least two wavelength components of the at least one sequence of signal samples to exclude information independent of the at least partially periodic vital signal and to include the physiological information indicative of the at least partially periodic vital signal, said at least one coefficient component being suitable for deriving at least one signal component by application to the at least one sequence of signal samples, a coefficient selection unit for selecting one coefficient component from the at least one coefficient component determined and provided by the transforming unit, a signal component unit for providing a signal component based on the selected coefficient component and the at least one sequence of signal samples, and a signal processing unit for providing the desired physiological information from the signal component.