How to measure waiting length at intersection

摘要

In the traffic measurement method, the video signal of the road situation detected by the CCD camera or CCTV camera is processed as a binary video signal to increase the reliability in measuring the waiting length at the intersection. The image input means maintains and installs an image input in a state where a vehicle does not exist in a predetermined state, and then sets the image into a memory area as an initial image, and then boots as the image input means while the initial image is set. After pre-processing the input video signal, the noise component is removed, the difference image is extracted by comparing the set initial image and the current image, the threshold value is set for the extracted difference image, and the binary image is extracted and extracted. The gray level and the pixel of the extracted binary image are detected and the waiting length is extracted through the calculation.