Impact of position and orientation accuracy on targeting in see through head-mounted displays for soldier information systems

A first-order statistical model was developed to estimate the impact of position and orientation error (e.g., due to inaccurate GPS/compass information) on the ability to accurately place markers on objects in see through head-mounted displays for soldier information systems. In addition, the impact of such errors on the exchange of marker information between soldier nodes was also studied. A closed-form analytical solution was derived and compared to numerical (Monte Carlo) solutions. To compensate for the identified limitations of current systems, dynamically sized target markers and proximity warnings are proposed.