Foggy-day driving visual enhancement and visibility early warning system and method based on multiple sensors

The invention discloses a foggy-day driving visual enhancement and visibility early warning system and method based on multiple sensors, and belongs to the technical field of intelligent vehicles safety assistance driving. The system comprises a power supply, a variable-voltage plug, a preposed infrared camera, a preposed millimeter-wave radar, a vehicle-mounted electric control unit module, a vehicle-mounted display screen, a vehicle sound equipment, a vehicle-mounted loudspeaker, and a vehicle speed sensor. Through building a road image classifier and a fog image classifier, building a fog image defogging model and obtaining a clear defogging image, the system and method achieve the effect of visual enhancement, construct a visibility calculation model, judge the visibility level, measure the vehicle speed level through employing the millimeter-wave radar, detect the level of an interval with a front vehicle, and judges whether the visual and acoustic early warning is provided for a driver or not. The system and method can achieve the visual enhancement and driving visibility early warning for the driver under the conditions of a foggy day and low visibility, and solve problems that a conventional vehicle fog light is limited in irradiation range in a foggy data and has a blind region and the driver does not judge the driving environment accurately.