Figure 5: Synchronized supine (left image) and prone (right image) navigation. A 0.6-cm adenomatous polyp in the transverse colon of a 65-year-old man, partially colored orange (arrows) on images created by using a computer-aided detection system, has circumference positions of 5.0 and 5.0 grid lines in the supine (arrowhead) and prone (dashed arrow) positions. The camera-controlling text boxes under the images orient the camera (from top to bottom) 49 cm away from the cecum, at a 0° rotation angle, at a 3° pitch up angle, and at a 15-unit (one unit = 0.1 radians) field of view (zoom factor); and orient the right camera 3 cm ahead in the centerline position. Analogous to clock positions, the TO (red-yellow-green stripe), TL (yellow stripe), and TM (green stripe) are labeled grid lines 12, 4, and 8, respectively.