Moving Vehicle Detection Based on Union of Three-Frame Difference

Due to problems of blank holes created by traditional frames difference in moving object detection, this paper develop a method of moving vehicle detection, which is based on three-frame-difference and union set. First, we difference the three grayed images and enhance them. Second, dichotomize images and filter some interference. Third, make the union set operation. Finally, detect the vehicle with morphology process and connectivity analysis. The results of experiment show that this method is characterized by small calculating amount, fast speed, accurate detection and a good robustness.