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AI Biotech/Diagnostics: Cardio


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Patent US10299717


Issued 2019-05-28

Detecting Stress Based On Thermal Measurements Of The Face

Described herein are systems and methods for detecting a stress level of a user. In one embodiment, a system includes an inward-facing head-mounted thermal camera (CAM) and a computer. CAM takes thermal measurements of a region on a periorbital area (THROI1) of the user. The computer generates feature values based on THROI1, and utilizes a model to detect the stress level based on the feature values. The model was trained based on: previous THROI1 taken while the user was under elevated stress, and other previous THROI1 taken while the user was not under elevated stress. Some embodiments may utilize additional thermal cameras that take thermal measurements of other regions on the face, which may be utilized to detect the stress level.



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3 Independent Claims

  • 1. A system configured to detect a stress level, comprising: an inward-facing head-mounted thermal camera (CAM) configured to be held less than 10 cm from a user's head and to take thermal measurements of a region on a periorbital area (THROI1) of the user; wherein the field of view of CAM does not cover a region outside the user's face; and a computer configured to: generate feature values based on THROI1, utilize a model to detect the stress level based on the feature values, and output said stress level; wherein the model was trained based on: previous THROI1 taken while the user was under elevated stress, and other previous THROI1 taken while the user was not under elevated stress.

  • 17. A system configured to alert about stress, comprising: first and second inward-facing head-mounted thermal cameras (CAM1, CAM2) configured to be held at least 0.5 cm to the right and to the left of the vertical symmetry axis that divides a user's face, respectively; CAM1 and CAM2 are further configured to take thermal measurements of regions on the periorbital areas of the right and left eyes (THROI1 and THROI2, respectively) of the user; wherein the fields of view of CAM1 and CAM2 do not cover a region outside the user's face; and a user interface configured to provide an alert about a stress level reaching a threshold; wherein the stress level is determined based on THROI1 and THROI2.

  • 19. A method comprising: taking thermal measurements of regions on the periorbital areas of the right and left eyes (THROI1 and THROI2, respectively) of a user utilizing first and second inward-facing head-mounted thermal cameras (CAM1 and CAM2, respectively) configured to be held at least 0.5 cm to the right and to the left of the vertical symmetry axis that divides the user's face, respectively; wherein the fields of view of CAM1 or CAM2 do not cover a region outside the user's face; and alerting about a stress level that is detected based on THROI1 and THROI2.