摘要：AbstractThe purpose of this paper is to suggest a new procedure for reconstructing the transverse profile of rails in operation by means ofimage-processing technique. This methodological approach is based on the “information” contained in high-resolution photographic images of tracks and on specific algorithms which allow to obtain the exact geometric profile of the rails and therefore to measure the state of the rail-head extrados wear. The analyses and the results concern rails taken from railway lines under upgrading by means of mono- and stereoscopic methods which are appropriate to be employed in laboratory applications or in high-efficiency surveys in situ.
关键词：railway track;rails profile measurement;mono and stereoscopic image analysis
