Research Of Vehicular Infrared Night Vision System

Automotive night vision system is based on infrared technology, as the active safetydevice for the vehicles. Can assist the driver at night or on the poor visibility conditionhave a good vision of the road ahead of dangerous prevention, reduction of accidence.According to the different principle of technology, both can be divided into active andpassive. This thesis mainly focused on infrared laser night vision system did a systematicanalysis, the current night vision system market is complex, expensive, poor immunity andthe defect of the traditional night vision system, come up with the innovation solution.Paper in addition to do the simple exposition of the home and broad research statusand the importance of night vision system, but also through the analysis the theory oflatest night vision system technology, system design, technical studying. Have the detailedexposition on overall system equipment selection, issues related to the choice of where toinstall the devices, and the problem of selection of light resource. Aimed the issue of poorimmunity at the current night vision system, provided the method of processing theimages. After on image drop noise and image enhanced and image split of processingmethod, to gets can reflect space and time features of infrared image. For the phenomenonwhen two cars met appeared the large spot, according to the principle of HDR, use themethod of setting the threshold value on the exposure of camera to have improved. Tovalidate the feasibility of this system, set up an infrared night view experiment, proceed tocollect the vehicle infrared night view images and analyze the result of imaging processing.Experiments show that the function of night vision system can be worked successfully.