The application of the Hough transform to the detection of parallel straight lines

摘要

In this paper we study the principal problems posed by the application of the Hough Transform to small scale images .udWe show that the discretization of image space makes the distribution of parameters in the Hough space non-homogeneous andudnon-equiprobable . One solution to this defect, which is accentuated by picture limitations, is presented in the case of the detectionudof straight lines .udThis method of correction allows the rapid detection of parallel straight lines on a square scan window . We also present anudapplication in the framework of a project for finding the road network on a map .