DROWSINESS DETECTOR, PROGRAM AND DROWSINESS DETECTION METHOD

摘要

PPROBLEM TO BE SOLVED: To provide a drowsiness detector, a program and a drowsiness detection method by which drowsiness can be detected highly precisely. PSOLUTION: The drowsiness detector 20 measures values L1 to L3 based on distances between a straight line A, connecting a left eye inner canthus and a left eye outer canthus, and an inner corner, an outer corner and the center in the horizontal direction therebetween of the left eyebrow, respectively. Similarly, it measures values R1 to R3 based on distances between a straight line B, connecting a right eye inner canthus and a right eye outer canthus, and an inner coener, an outer corner and the center in the horizontal direction therebetween of the right eyebrow, respectively. Then, when any one of L1 to L3 and R1 to R3 is larger than threshold L1a to L3a and R1a to R3a in a wakeful state, it is detected that the eyebrow is raised and drowsiness occurs. PCOPYRIGHT: (C)2010,JPO&INPIT