Digital imaging processing for speed determination and traffic flow measurement
DOI:
https://doi.org/10.31381/perfiles_ingenieria.v2i11.406Keywords:
Speed determination, traffic flow measurement, Morphologic Operations, Image Labeling, Matlab GUI softwareAbstract
This article proposes an image processing technique for measuring vehicular flow and estimating speed at a given point on Paseo de la República Avenue in the city of Lima. To determine vehicular flow and estimate speed, a non-linear digital filtering operation, histogram manipulation, a segmentation operation, and morphological operators of dilation, erosion, opening, closing, and binary image labeling were used. By labeling the images, each vehicle was represented by a white object. This facilitated obtaining the center of mass of the objects labeled in each binary image in order to then compare them with respect to a reference line. This technique was implemented in the GUI of the Matlab software and a group of 12 digital videos captured during daylight hours and for limited periods of time was used. As for the results, the average vehicle flow achieved had a success rate of 90%, while in the case of the approximate average speed a value not exceeding 80 km/h was found.
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