IMAGING-BASED MONITORING OF STRESS AND FATIGUE

摘要

An example system can monitor the stress and fatigue of a subject. The system can include a light source configured to direct illuminating light onto a face of the subject. The illuminating light can reflect off the face of the subject to form reflected light. The system can include collection optics that collect a portion of the reflected light and produce video-rate images of the face of the subject. The system can include an image processor configured to locate an eye in the video-rate images, extract fatigue signatures from the located eye, and determine a fatigue level of the subject, in part, from the fatigue signatures. The image processor can also be configured to locate a facial region away from the eye in the video-rate images, extract stress signatures from the located facial region, and determine a stress level of the subject from the stress signatures.

主权项

1. A system for monitoring stress and fatigue of a subject, the system comprising:
collection optics that collect a portion of light reflected from a face of the subject and produce video-rate images of the face of the subject; and an image processor configured to:
locate an eye in the video-rate images;extract fatigue signatures from the located eye;determine a fatigue level of the subject, in part, from the fatigue signatures;locate a facial region away from the eye in the video-rate images;extract stress signatures from the located facial region; anddetermine a stress level of the subject from the stress signatures.