This paper deals with the problem of estimating the following road sign parameters: height, dimensions, visibility distance and partial occlusions. This work belongs to a framework whose main applications involve road sign maintenance, driver assistance, and inventory systems. From this paper the authors suggest a multisensory system composed from two cameras, a GPS receiver, and a distance measurement device, all of them installed in a car. The process consists of several steps which include road sign detection, recognition and tracking , and road signs parameters estimation. From some trigonometric properties, and a camera model, the information provided by the tracking subsystem and the distance measurement sensors, they estimate the road signs parameters. Results show that the described calculation methodology offers a correct estimation for all types of traffic signs.
Road sign analysis using multisensory data
Analyse von Verkehrszeichen mit Hilfe von Multisensor-Daten
2007
10 Seiten, 7 Quellen
Conference paper
English
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