AUTOMATIC MONITORING OF VEHICLES AT ROAD JUNCTIONS

A. D. Houghton, G.S. Hobson, N.L. Seed, R.C. Tozer

Traffic engineering & control · 1987 · 17 citations · 0 references

Concepts

Abstract

This paper shows how with suitable reduction of image data and appropriate feature extraction, it is possible to track several vehicles concurrently through a road network of almost arbitary complexity. The solution is believed to be cost-effective, using off-the-shelf technology and readily-available computing power. The processing falls into 2 parts: (1) feature highlighting and extraction, carried out by the RAPAC image processing system; and (2) vehicle tracking, carried out with a 5MHZ 8086-based microcomputer. The system promises a cost-effective solution to the automatic monitoring of turning movements by road traffic. With this system accuracies of 90 to 95 per cent have been achieved on simple networks such as T-junctions.