1. A system comprising: a display; a sensor to detect an object and generate data related to the object; and a controller to determine a first pose of the object from the data and display a first representative image on the display and to determine a second pose of the object and display a second representative image on the display, wherein the first representative image and the second representative image are radially symmetric images, wherein the first representative image or the second representative image is formed of a closed element and wherein the other of the first representative image or the second representative image is formed of an open element.