A man-machine interface for camera control in remote monitoring using line-of-sight

In this information oriented society, the man-machine interface is a necessary technology, and comfortable operation for the user is desired. The authors are developing a man-machine interface employing the user's line of sight (LOS). With this novel interface, the user can control the aspect of the multifunction monitoring camera using only his LOS. The LOS is calculated using image processing. The image from the monitoring camera is projected on the monitor, and the user's LOS is shown as the cursor on the same monitor. We defined three LOS parameters for use in the interface: fixed gaze, shifting LOS, and disinterest. The study demonstrates the feasibility of one function of a man-machine interface using LOS. This interface can be used for monitoring shops and warehouses, or in remote conferencing systems.