Sphere recognition for foams composite materials images

This paper proposes a method to detect spheres in 3D images of high density materials. This method needs to be fast because of the high number of spheres in images as well as accurate. In order to do this, an algorithm based on centres detection is used, which permits to obtain results in a low computation time. However, we need to improve algorithm accuracy, and for that, a circular Hough Transform algorithm is used on planes, and a sphere verification technique are added to the base method. Finally, we obtain an algorithm which provides accurate results in a relatively low computation time.