DEVICE AND METHOD FOR MONITORING VITAL SIGNS

• US 20160015308A1
• Filed: 02/21/2013
• Published: 01/21/2016
• Est. Priority Date: 02/28/2012
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips N.V.
• Inventors: KIRENKO, IHOR OLEHOVYCH, VAN LEEST, ADRIAAN JOHAN, DE HAAN, GERARD
• Granted Patent: US 10,542,925 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2576/00 Medical imaging apparatus involving image processing or analysis A61B1/00009, A61B6/52 and A61B8/52 take precedence; image processing per se G06T; details of algorithms for analysing medical images G06T7/0012
• CPC Class Codes: A61B 5/0013 Medical image data A61B1/00011, A61B6/56, A61B8/56 take precedence
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/0064 Body surface scanning
• CPC Class Codes: A61B 5/0077 Devices for viewing the surface of the body, e.g. camera, magnifying lens
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/1123 Discriminating type of movement, e.g. walking or running A61B5/1116, A61B5/112 take precedence
• CPC Class Codes: A61B 5/1128 using image analysis A61B5/1127 takes precedence
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/222 combined with detection or measurement of physiological parameters, e.g. heart rate
• CPC Class Codes: A61B 5/721 using a separate sensor to detect motion or using motion information derived from signals other than the physiological signal to be measured
• CPC Class Codes: A61B 5/725 using specific filters therefor, e.g. Kalman or adaptive filters A61B5/316 take precedence
• CPC Class Codes: A61B 5/7278 Artificial waveform generation or derivation, e.g. synthesising signals from measured signals A61B5/327 takes precedence
• CPC Class Codes: A61B 5/7289 Retrospective gating, i.e. associating measured signals or images with a physiological event after the actual measurement or image acquisition, e.g. by simultaneously recording an additional physiological signal during the measurement or image acquisition
• CPC Class Codes: G06F 2218/00 Aspects of pattern recognition specially adapted for signal processing
• CPC Class Codes: G16H 30/40 for processing medical images, e.g. editing

Abstract

The present invention relates to a device (1) and method for monitoring vital signs of a subject. In particular, the device for monitoring vital signs (1) comprises an imaging unit (2) for obtaining image data (3) of said subject, an interface (7) for receiving motion data (8) of said subject and/or said imaging unit (2), a processing unit (4) for extracting vital signs (9) of said subject from said image data (3), and a control unit (5) for adapting parameters (6a, 6b) of said imaging unit (2) and/or said processing unit (4) based on the received motion data (8). A further aspect of the invention relates to a fitness device (10) comprising a device for monitoring vital signs (1) and a motion detection unit (13, 14, 15) for providing said device for monitoring vital signs (1) with motion data (8).

Claims

1. A device for monitoring vital signs of a subject, comprising:

an imaging unit for remotely obtaining image data of said subject,

an interface for receiving motion data of said subject, wherein said interface is configured to receive said motion data of said subject from a fitness device,

a processing unit for extracting vital signs of said subject from said image data, and

a control unit for adapting parameters of said imaging unit or said processing unit based on the received motion data.

3. The device according to claim 1, wherein said motion data includes at least one of a type of motion, a motion direction, a motion path, a motion amplitude, a motion frequency, a motion intensity, a resistance and force the subject has to work against.

4. The device according to claim 1, wherein said motion data includes physical or workout information about the subject whose vital signs are to be measured.

5. The device according to claim 1, wherein said control unit is configured to adapt the parameters of said processing unit to an expected value range for vital signs based on the received motion data.

6. The device according to claim 1, wherein said processing unit is configured to determine the vital signs from a body part or group of body parts, wherein said processing unit is configured to find or track said body part or group of body parts in said image data based on the received motion data.

7. The device according to claim 1, wherein said control unit is configured to adapt at least one of the image acquisition rate, exposure time, focus, zoom and active sensing area of said imaging unit.

8. The device according to claim 1, wherein the processing unit comprises a filter for filtering said image data and/or vital signs, wherein the parameters of said filter depend on said motion data.

9. The device according to claim 1, wherein the control unit is configured to adapt the parameters of the processing unit for

detecting frequency and/or amplitude components included in the received motion data, and

correcting the image data or vital signs for said frequency or amplitude components.

10. The device according to claim 1, wherein the processing unit comprises a filter for filtering said image data or vital signs, wherein parameters of said filter depend on the derivative of said motion data.

11. The device according to claim 1, wherein processing unit is configured to determine a quality level indicating the reliability of said extracted vital signs depending on said motion data.

12. The device according to claim 1, wherein said interface is configured to receive said motion data of said imaging unit from said imaging unit or a motion detection unit.

2. (canceled)

13. A fitness device, comprising:

a device for monitoring vital signs of a subject comprising;

an imaging unit for remotely obtaining image data of said subject;

an interface for receiving motion data of said subject, wherein said interface is configured to receive said motion data of said subject from a fitness device;

a processing unit for extracting vital signs of said subject from said image data; and

a control unit for adapting parameters of said imaging unit or said processing unit based on the received motion data; and

a motion detection unit for providing said device for monitoring vital signs with motion data of the subject or the imaging unit.

14. A method for monitoring vital signs of a subject, comprising:

remotely obtaining image data of said subject from an imaging unit,

receiving motion data of said subject, wherein said motion data of said subject is received from a fitness device,

extracting vital signs of said subject from said image data using a processing unit, and

adapting parameters of an imaging unit or adapting parameters of a processing unit based on the received motion data.

15. A computer readable medium having a computer program embodied thereon for causing a processor, when executing the computer program, to carry out a method for monitoring vital signs of a subject, the method comprising:

remotely obtaining image data of said subject from an imaging unit;

receiving motion data of said subject, wherein said motion data of said subject is received from a fitness device;

extracting vital signs of said subject from said image data using a processing unit; and

adapting parameters of an imaging unit or adapting parameters of a processing unit based on the received motion data.