Object Location Using the HOUGH Transform

Identification of machining marks on abrasive treated surfaces, using image processing techniques

“…General theory of the shape identification of objects, based on comparing the so-called shape descriptors, is presented in paper [2]. Most often, the identification of the shape of objects in an image is based on the application of Hough's transformation [3,4].…”

“…If in the image of the surface of arbitrary rectangular shapes, for example straight lines of surface abrasion, such as grinding or glazing, they can be identified by means of Radon transformation or Hough transformation, which in this case is a special case of integral Radon transformations [3][4][5]. Both the Hough transformation and the Radon transformations are then based on the observation that the straight line which in the Cartesian 0xy coordinate system is described by the directional equation:…”