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An Algorithm to Estimate Mean Traffic Speed Using Uncalibrated Cameras
Author(s)
Dailey, Daniel J.
Cathey, F. W.
Pumrin, Suree
Date Issued
June 1, 2000
Type
Article
Abstract
In this paper, we present a novel approach to estimate traffic speed using a sequence of images from an uncalibrated camera. We assert that exact calibration is not necessary to estimate speed. Instead, we use 1) geometric relationships inherently available in the image, 2) some common-sense assumptions that reduce the problem to a one-dimensional (1-D) geometry, 3) frame differencing to isolate moving edges and track vehicles between frames, and 4) parameters from the distribution of vehicle lengths, to estimate speed.
Citation
IEEE Transactions on Intelligent Transportation Systems, 1(2), 98-107, 2000