Estimation of straight line offsets by high-resolution method

The application of the high-resolution methods of array processing to source localisation has led to a considerable improvement in results. By considering some conventions, these methods can be applied to the characterisation of straight lines in an image. It is proposed to associate a high-resolution method with a method that generates a signal out of an image. This approach permits, in particular, to estimate the parameter ´offset´, that is, the intersection with the upper side of the image of the straight lines. The proposed approach is fast and efficient when compared with the well-known method ´extension of the Hough transform´.