Detecting physiological responses based on thermal asymmetry of the face
First Claim
1. A system configured to collect thermal measurements indicative of thermal asymmetry on a user'"'"'s face, comprising:
- first and second inward-facing head-mounted thermal cameras (CAM1 and CAM2, respectively) located less than 15 cm from the user'"'"'s face, and configured to take thermal measurements of regions on the right and left sides of the face (THROI1 and THROI2, respectively) of the user;
wherein the symmetric overlapping between the regions on the right and left sides (ROI1 and ROI2, respectively) is above 60%, and CAM1 and CAM2 do not occlude ROI1 and ROI2.
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Abstract
Manifestation of some physiological responses (e.g., stress, mental workload, or a headache) may involve the emergence of asymmetric thermal patterns on the face. Thus, thermal measurements of the face that are indicative of thermal asymmetry can be useful to detect such physiological responses. In one embodiment, a system includes first and second inward-facing head-mounted thermal cameras (CAM1 and CAM2, respectively) that are located less than 15 cm from the user'"'"'s face, which take thermal measurements of regions on the right and left sides of the face (THROI1 and THROI2, respectively) of the user. The symmetric overlapping between the regions on the right and left sides (ROI1 and ROI2, respectively) is above 60%, and CAM1 and CAM2 do not occlude ROI1 and ROI2. Optionally, the system includes a computer that detects a physiological response based on thermal asymmetry between THROI1 and THROI2.
3 Citations
21 Claims
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1. A system configured to collect thermal measurements indicative of thermal asymmetry on a user'"'"'s face, comprising:
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first and second inward-facing head-mounted thermal cameras (CAM1 and CAM2, respectively) located less than 15 cm from the user'"'"'s face, and configured to take thermal measurements of regions on the right and left sides of the face (THROI1 and THROI2, respectively) of the user; wherein the symmetric overlapping between the regions on the right and left sides (ROI1 and ROI2, respectively) is above 60%, and CAM1 and CAM2 do not occlude ROI1 and ROI2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for detecting a physiological response that causes a thermal asymmetry on a user'"'"'s face, comprising:
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taking, using first and second inward-facing head-mounted thermal cameras (CAM1 and CAM2), thermal measurements of regions on the right and left sides of the face (THROI1 and THROI2, respectively);
wherein the regions on the right and left sides of the face have a symmetric overlapping above 60%, CAM1 and CAM2 are less than 10 cm away from the face, and the angles between the Frankfort horizontal plane and the optical axes of CAM1 and CAM2 are greater than 20°
; anddetecting the physiological response based on THROI1 and THROI2. - View Dependent Claims (21)
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Specification