CONTROLLED ENVIRONMENT THERMAL IMAGE DETECTION SYSTEM AND METHODS REGARDING SAME

• US 20060116555A1
• Filed: 11/18/2004
• Published: 06/01/2006
• Est. Priority Date: 11/18/2004
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Pavlidis, Ioannis, Bazakos, Michael E., Morellas, Vassilios
• Granted Patent: US 7,138,905 B2
• Time in Patent Office: Days
• US Class Current: 600/300
• CPC Class Codes: A61B 5/01 Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue clinical contact thermometers G01K13/20
• CPC Class Codes: A61B 5/015 By temperature mapping of body part
• CPC Class Codes: A61B 5/16 Devices for psychotechnics using teaching or educational appliances G09B1/00 - G09B7/00; Testing reaction times ; Devices for evaluating the psychological state
• CPC Class Codes: A61B 5/164 Lie detection
• CPC Class Codes: A61B 5/6888 Cabins

Abstract

Thermal infrared image data of at least a region of a face of a person in an enclosure is provided. The enclosure, for example, may include a first enclosed volume and a second enclosed volume physically separated from the first enclosed volume. The first enclosed volume may include an entrance door sized to allow a person to enter the first enclosed volume. The enclosure provides a controlled environment for performing measurements (e.g., capturing thermal infrared image data) for use in determining a physiological state of a person (e.g., anxiety, deception, etc.).

Claims

1. A method for use in detecting a physiological state of a person, the method comprising:

providing an enclosure, wherein the enclosure comprises a first enclosed volume and a second enclosed volume physically separated from the first enclosed volume, wherein the enclosure further comprises an entrance door sized to allow a person to enter the first enclosed volume;

controlling one or more characteristics of the environment within the first enclosed volume;

permitting only a single person to enter the first enclosed volume through the entrance door;

asking the person within the first enclosed volume one or more questions so as to elicit a response from the person;

providing thermal infrared image data of at least a region of the face of the person during at least a portion of the response from the person using at least one thermal infrared imaging device, wherein the at least one thermal infrared imaging device is positioned within the second enclosed volume; and

using the thermal infrared image data to determine a physiological state of a person.

2. The method of claim 1, wherein the enclosure further comprises an exit door sized to allow a person to exit the first enclosed volume, wherein the entrance door and the exit door provide different openings of the enclosure, and further wherein the method comprises permitting the person within the first enclosed volume to exit the enclosure via the exit door.

3. The method of claim 1, wherein the enclosure is one of a plurality of enclosures positioned side by side.

4. The method of claim 3, wherein the enclosures are portable, and further wherein the method comprises moving one or more of the enclosures from a first location to a second location.

5. The method of claim 1, wherein the method further comprises allowing the person to be seated at a position within the first enclosed volume.

6. The method of claim 1, wherein controlling one or more of the characteristics of the environment within the first enclosed volume comprises controlling at least one characteristic selected from a group consisting of temperature, light intensity, air movement, and noise.

7. The method of claim 1, wherein controlling one or more of the characteristics of the environment within the first enclosed volume comprises:

sensing one or more environmental parameters within the first enclosed volume; and

controlling one or more of the characteristics of the environment within the first enclosed volume based thereon.

8. The method of claim 1, wherein asking the person within the enclosure one or more questions so as to elicit a response from the person comprises:

prerecording the one or more questions; and

presenting the one or more prerecorded questions to the person.

9. The method of claim 8, wherein presenting the one or more prerecorded questions to the person comprises displaying an animated or a video recorded figure presenting the one or more prerecorded questions to the person.

10. The method of claim 8, wherein presenting the one or more prerecorded questions to the person comprises:

detecting one or more responses from the person; and

synchronizing the presentation of the one or more prerecorded questions with the one or more detected responses from the person.

11. The method of claim 1, wherein permitting a person to enter the first enclosed volume through the entrance door comprises authorizing the person to enter the first enclosed volume, wherein such authorization permits the entrance door to be unlocked.

12. The method of claim 1, wherein providing thermal infrared image data of at least a region of the face of the person comprises:

focusing a thermal infrared image device operable to provide thermal image data on at least the region of the face of the person; and

capturing thermal image data from at least a region of the face of the person during at least a portion of the response from the person.

13. The method of claim 1, wherein using the thermal image data to determine a physiological state of a person comprises using the thermal infrared image data to determine anxiety in the person.

14. The method of claim 1, where using the thermal image data to determine a physiological state of a person comprises using the thermal infrared image data to determine whether the person is deceptive or non-deceptive.

15. The method of claim 14, wherein using the thermal infrared image data to determine whether the person is deceptive or non-deceptive comprises:

providing the thermal image data from at least a region of the face of the person; and

transforming the thermal image data to blood flow rate data for use in determining whether the person is deceptive or non-deceptive.

16. The method of claim 15, wherein determining whether the person is deceptive or non-deceptive comprises classifying the person as deceptive or non-deceptive based on a change of blood flow rate over time in the at least one region of the face.

17. The method of claim 15, wherein transforming the thermal image data comprises transforming the thermal image data using a blood flow rate model where blood flow rate is inversely proportional to the square of skin temperature deviation from a core temperature of a human body.

18. The method of claim 1, wherein the method further comprises providing measurement of one or more physiological parameters in addition to the thermal image data, and further wherein using the thermal infrared image data to determine a physiological state of a person comprises using the thermal infrared image data and the one or more physiological parameters to determine a physiological state of a person.

19. The method of claim 1, wherein providing thermal infrared image data comprises providing the thermal image data to a computing apparatus, wherein the computing apparatus is positioned within the second enclosed volume.

20. A system for use in detecting a physiological state of a person, the system comprising:

an enclosure sized to accommodate only a single person therein, wherein the enclosure comprises a first enclosed volume and a second enclosed volume physically separated from the first enclosed volume, wherein the enclosure comprises an entrance door sized to allow a person to enter the first enclosed volume;

one or more environment control devices for use in controlling one or more characteristics of the environment within the first enclosed volume;

a display apparatus and a speaker apparatus operable to present one or more prerecorded questions to a person occupying the first enclosed volume so as to elicit one or more responses therefrom;

a thermal infrared imaging device positioned within the second enclosed volume operable to provide thermal infrared image data of at least a region of the face of a person when the first enclosed volume is occupied by the person; and

a computing apparatus operable upon the thermal infrared image data to determine a physiological state of the person occupying the first enclosed volume.

21. The system of claim 20, wherein the enclosure further comprises an exit door sized to allow a person to exit the first enclosed volume, wherein the entrance door and the exit door are different openings of the enclosure.

22. The system of claim 20, wherein the enclosure is one of a plurality of enclosures positioned side by side.

23. The system of claim 22, wherein one or more of the plurality of enclosures is portable and movable from a first location to a second location.

24. The system of claim 23, wherein one or more of the enclosures comprises a set of transfer wheels on a lower surface thereof.

25. The system of claim 20, wherein the system further comprises a seat positioned within the first enclosed volume to allow a person to be seated at a position therein.

26. The system of claim 20, wherein the one or more environment control devices comprise an air modification apparatus operable to adjust temperature within the first enclosed volume, wherein the system further comprises at least one temperature sensor located within the first enclosed volume to sense the temperature within the first enclosed volume, and wherein the temperature within the first enclosed volume is controlled as a function of the sensed temperature.

27. The system of claim 20, wherein the one or more environment control devices comprise a light source operable to adjust light intensity within the first enclosed volume, wherein the system further comprises at least one light sensor located within the first enclosed volume to sense light intensity within the first enclosed volume, and wherein the light intensity within the first enclosed volume is controlled as a function of the sensed light intensity.

28. The system of claim 20, wherein the one or more environment control devices comprise an air modification apparatus operable to adjust air flow within the first enclosed volume, wherein the system further comprises at least one air flow sensor located within the first enclosed volume to sense air movement within the first enclosed volume, and wherein the air flow within the first enclosed volume is controlled as a function of the sensed air movement.

29. The system of claim 20, wherein the display apparatus and the speaker apparatus are operable under control of the computing apparatus to provide an animated or a video recorded figure presenting one or more prerecorded questions to the person.

30. The system of claim 20, wherein the system further comprises a microphone located in the first enclosed volume for use in detecting one or more responses from the person in the first enclosed volume, and wherein the display apparatus and the speaker apparatus are operable under control of the computing apparatus to synchronize the one or more prerecorded questions with the one or more detected responses from the person.

31. The system of claim 20, wherein the system further comprises an identification authorization apparatus associated with the entrance door to provide authorization to a person waiting to enter the first enclosed volume, wherein the entrance door is unlocked only upon a person receiving such authorization.

32. The system of claim 20, wherein the computing apparatus is operable to determine anxiety in the person based on thermal infrared image data.

33. The system of claim 20, where the computing apparatus is operable to determine whether a person in the first enclosed volume is deceptive or non-deceptive using the thermal infrared image data.

34. The system of claim 33, wherein the computing apparatus is further operable to transform the thermal infrared image data to blood flow rate data for use in determining whether the person is deceptive or non-deceptive.

35. The system of claim 33, wherein the computing apparatus is further operable to classify the person as deceptive or non-deceptive based on a change of blood flow rate over time in the at least one region of the face.

36. The system of claim 35, wherein the computing apparatus is further operable to transform the thermal infrared image data using a blood flow rate model where blood flow rate is inversely proportional to the square of skin temperature deviation from a core temperature of a human body.

37. The system of claim 33, wherein the thermal infrared image device is operable to capture thermal image data during at least a period of time during at least an elicited response from a person in the first enclosed volume.

38. The system of claim 20, wherein the system further comprises means for providing measurement of one or more physiological parameters in addition capturing the thermal infrared image data, and further wherein the computing apparatus is operable to determine whether the person is deceptive or non-deceptive using the thermal infrared image data and the one or more physiological parameters.

39. The system of claim 20, wherein the computing apparatus is positioned in the second enclosed volume.