ABSTRACT
Abstract Visual search was conducted using a helmet-mounted display (HMD) with two-dimensional (2D) bioptic or three-dimensional (3D) stereo displays. Thus, head movements enabled the subject to control the display and conduct a visual search of the displayed scene. Various display conditions or image characteristics may be less important than the role of cognitive factors in search tasks. Thus, there were two major experiments. In the first, the 2D display provided only a random distribution of targets, consequently image characteristics such as clutter, contrast and window size dominated search performance. In the second part, the 3D stereo display provided a quasinatural scene, in which reasonable distribution of targets provided an opportunity for human memory and familiarization to play a role.
