how to calculate vehicle speed ?

samedi 31 mai 2014

hello everyone ,i am doing my project in image processing.i am taking video of car moving on the road and taking video frames of the same.



i want to calculate speed of vehicle.using frame rate i can calculate the time elapsed by vehicle to cover some distance. but i have one difficulty, As the vehicle goes away its size goes down also we can’t use linear scale to compute the distance .for this can anybody help me for distance computation?

i am adding images ,so that u can get an idea about it..thank u




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