| http://www.w3.org/ns/prov#value | - A system for detecting fatigue in a monitored person, said system comprising;input means for inputting an image representing at least a portion of said monitored person's face, said portion including at least one eye and at least one eyebrow; a monitor for monitoring the relative positions of said eye and said eyebrow with respect to each other; and a controller for determining when said monitored
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