How it works: -Place phone in a secure location pointing towards your face and click "Begin Session". The indicator in the upper right hand corner will let you know if Keep Alert detects your face. -Keep Alert uses a combination of the TrueDepth Camera and Front Facing Camera to monitor values relating to the position of different points on your face. -During the first few minutes of a session, Keep Alert establishes baseline thresholds for several factors such as head position, blink frequency, and blink speed. -If Keep Alert detects that a user may have decreased alertness, it will audibly warn the user. This is due to a combination of several factors such as a slower blink speed, stationary eye and head position, and increased blink frequency. -If at any point does a user close their eyes or nod their head forward, Keep Alert will audibly alert the user that their alertness has been disrupted. -To end the session, click "End Session". Note that at the end of a session, all data is deleted and at no point does personal data leave the device. See privacy policy for more details. Keep Alert also has a feature called Illuminate Mode in which the phone screen illuminates a users face and thus allows Keep Alert to function in low light conditions.
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