Abstract: On the basis of traditional successive images difference, threshold processing was made to the region of interest which was obtained by the method of successive images difference, getting foreground which is represented by white pix and background which is represented by black pix, then a new algorithm was designedto detect the vehicle algorithm of adaptive thresholds of template matching for vehicle detection in video flow. Experiments demonstrate that the algorithm is simple, implemented easily, and can detect the vehicle exactly.

Key words: intelligent transportation systems, successive images difference, adaptive threshold, template matching