This paper is dedicated to the estimation of the parallel lines projections 
intersections (vanishing points) on the image's plane, obtained with the projective camera. 
Vanishing points allow the estimation of camera parameters, rectifying images 
and others features, so their finding is important problem in computer vision.
The task of vanishing points estimation is formalized as an unsupervised learning problem 
and an effective algorithm of it's solving is propounded in current paper.
Experimental testing of a propounded method was implemented over the images 
of town quarters which are used in interactive cartographic system www.Mappy.com.