The Relationship of Binocular Convergence and Errors in Judged Distance to Virtual Objects

Abstract Errors in judged depth of nearby virtual objects presented via see-through helmet mounted displays are shown to be linked to changes in binocular vergence. This effect varies measurably across the subjects examined and correlates with the magnitude of the subjects’ individual depth judgment errors. The relationship is demonstrated by visually superimposing computer-generated virtual objects on physical backgrounds in a manner similar to that suggested for some practical applications. Suggestions for improved control of virtual objects under these viewing conditions are briefly discussed.