Video-based vehicle detecting and tracking method and system

The invention provides a video-based vehicle detecting and tracking method and system. The method comprises the steps of inputting a video containing a vehicle; detecting the vehicle in the video by means of a detector, obtaining a detection result of the vehicle, and building an online model of the vehicle according to a first-time detection result of the vehicle; tracking the vehicle in the video, and obtaining a tracking result of the vehicle; utilizing the online model of the vehicle for respectively conducting confidence coefficient calculation on the tracking result and the detecting result of the same fame, and obtaining a final detecting and tracking result according to integration of a confidence coefficient calculation result, the tracking result and the detecting result; utilizing the final detecting and tracking result for updating the online model of the vehicle and the detector through online learning. According to the video-based vehicle detecting and tracking method and system, the problems that the vehicle deforms in the tracking process and other objects shield the vehicle are solved.