A method for locating the iliac crests based on the fuzzy Hough transform
Sergio Jaime-Castillo, Juan Miguel Medina, A. Garrido · European Society for Fuzzy Logic and Technology Conference · 2009
In this paper we present a method based on the fuzzy Hough transform to locate the iliac crests in posteroanterior radio- graphs. Firstly, a Canny edge detector is applied to the X-ray images in order to obtain an edge map. Then, the fuzzy Hough transform is used in combination with several constraints extracted from our domain knowledge. At the bottom of the radiograph we search for two circular arcs, as we can represent the shape of the iliac crests by means of these curves. Locating the iliac crests can be useful for a later processing of the X-rays in order to obtain a fully automated segmentation of the whole spine.