Development of Artificial Intelligence Based Technique for Minimization of Errors and Response time in Head Tracking for Head Worn Systems

Abstract

To overcome the problem of information access in-flight environment, displays such as Head Down Displays (HDD), Head-Up Display (HUD), Helmet Mounted Display (HMD), etc. are incorporated in the cockpits of fighter planes. The motive of the HUDs and the HMDs is to provide the vital information to the pilot of an aircraft so that the pilot need not look down in the cockpit or scan for gathering the flight, weapon, and aircraft information. With the development in head-up displays, the helmet-mounted displays were incorporated to provide the information to the pilot on its visor similar to the case of head-up displays. The information to be displayed on the HMD has to be synchronized with the view of the external environment in synchronism with the head movement of the pilot. For this, the head of the pilot has to be tracked continuously to achieve synchronization with the external environment. For head tracking, various techniques such as mechanical, acoustic, optical, electromagnetic, and inertial can be used. As electromagnetic and optical trackers are more robust, lightweight, accurate, and cost-effective trackers as compared to the other three trackers, therefore, in this work, electromagnetic and optical tracking methods are used for head tracking and validating and predicting the missing data and error estimation. The head tracking devices form a vital component of head-wearable displays. Head tracking devices are used in modern aircraft, especially in combat aircraft. A head tracker updates the position of the head movements of the pilot. As soon as the pilot turns his head, the head tracker passes the orientation data to the controlling computer, which updates the displayed information consequently. Thus, the pilot can get numerous amount of real-time data that is associated with head orientation. To find out the angular coordinates of the pilot s line of sight, the orientation of the pilot s head has to be evaluated.