Research on lamp auto-control system based on infrared image processing

The field of vision of the driver will become narrower and the recognition capability will significantly decrease to the object in the dark. The hidden danger will increase when the headlight high beam light of opposite car is on because drivers feel dazzling. A kind of active near infrared camera system with auto-control lamps for night safety driving is presented in this paper. The captured infrared images of objects are preprocessing. The objects characters are shown after image segmentation and image morphologic processing. The results can be shown in displays, which improve driver's judging accuracy. When the light intensity detected by silicon photodiode is above the threshold, voltage threshold comparison circuit will generate a signal to close the high beam and open the dipped beam. This design can escape the driver's dazzle and save energy. Simulating and experimental results show that the system can decrease the judging loss rate of drivers to objects in night.