| 摘要 |
PROBLEM TO BE SOLVED: To provide a driver's undrivable state detector capable of highly accurately detecting a driver's undrivable state.SOLUTION: A driver's undrivable state detector comprises: white-of-eye detection means detecting a state in which a driver rolls his/her eyes up into his/her head on the basis of a driver seat image picked up by a driver camera 21 mounted in a vehicle 10; and eye-rolling state detection means detecting that the driver is in an undrivable state if the white-of-eye detection means detects the state in which driver rolls his/her eyes up into his/her head during the running of the vehicle 10. The white-of-eye detection means includes expression detection means detecting an outline and a black-of-eye region of each eye of the driver on the basis of the driver seat image; and a degree-of-white-of-eye calculation means calculating a degree of the white of the eye of each eye of the driver on the basis of the outline and the black-of-eye region of each eye detected by the expression detection means, and the state detection means detects that the driver is in the undrivable state if the degree of the white of the eye is larger than a white-of-eye threshold Th3 calculated by the degree-of-white-of-eye calculation means. |
