Abstract:
The present invention relates to remote photoplethysmography and in particular to a system (1) and method for determining vital sign information of a subject (100). The system comprises a marker (10, 10', 30, 40, 50, 60, 70) for application to a skin (104) of the subject, said marker further comprising a first marker area (11, 11', 23, 34b, 41, 4b, 61b, 71b) configured to transmit light (A, B) at a first wavelength and a second marker area (12, 12', 24, 35b, 42, 55b, 62b, 72b) configured to transmit light (C, D) at a second wavelength, a detection unit (2, 22) for detecting radiation received from the first marker area and from the second marker area of the marker, and an analysis unit (6) for determining the vital sign information of the subject from the detected radiation from the first marker area and from the second marker area.
Abstract:
The present invention relates to a device, system and method for determining vital signs of a subject. To balance accuracy and reliability with unobtrusiveness, the device comprises an interface (30) for receiving input signals from a detection unit (18) that is configured for contactless detection of radiation reflected from a subject (14) in response to illumination by an illumination source (22), a processing unit (32) for deriving photoplethysmography, PPG, signals from the received input signals, an analysis unit (34) for deriving a desired vital sign from the PPG signals, and a control unit (36) for controlling one or more parameters of the illumination source (22), the detection unit (18) and/or the analysis unit (34) in dependence on the physical state of the subject, the quality of the input signals or the derived vital sign and/or the value of the vital sign.
Abstract:
The present invention relates to a system (1) and method for determining vital sign information (7) of a subject (100). The system comprises a marker (10, 10', 10'', 40) for application to the subject (100), wherein the marker (10, 10', 10'', 40) is configured to change an optical property due to a mechanical manipulation of the marker (10, 10', 10'', 40) caused by a physiological process of the subject (100), a detection unit (2) for detecting radiation from the marker (10, 10', 10'', 40), and an analysis unit (6) for determining the vital sign information (7) of the subject (100) from the detected radiation.
Abstract:
A patient monitor device includes one or more sensors which measure physiological parameters of a patient, a controller which controls an audio source to generate an audible tone and adjust the pitch of the audible tone to indicate the measured physiological parameter according to a mapping scheme, the audio source which generates the audio tone, and an audio output device which outputs the audible tone. The mapping scheme clamping a frequency of the audible tone after reaching a predetermined threshold.
Abstract:
The present invention relates to a system (1) and method for determining vital sign information of a subject (100). The subject (100) is illuminated with radiation,and radiation reflected from the subject is received. A region of interest is located in a first phase. Said illumination is controlled to locally illuminate, in a second phase, the located region of interest with radiation allowing determination of vital sign information. Finally, vital sign information of the subject is determined from the radiation reflected from said region of interest and detected in said second phase.
Abstract:
The present invention relates to a system and a related method for extracting physiological information from remotely detected electromagnetic radiation (18, 18a). The system comprises an interface (28) configured for receiving a data stream (26) comprising image data representing an observed overall region (54) comprising at least one subject of interest (12); a partitioning unit (32) configured for defining a plurality of sub regions (62) in the overall region (54); and a classifier (36) configured for classifying the plurality of sub regions (62) into at least one indicative type of region and at least one auxiliary type of region, wherein the at least one indicative type of region comprises at least one indicative region of interest (68) at least partially representing the subject of interest. Preferably, the at least one auxiliary type of region comprises at least one reference region (70, 72, 74). More preferably, the system further comprises a data processor (40) configured for processing at least one sub region (62) classified as region of interest (68), thereby obtaining vital information.