title: Judgments of the distance to nearby virtual objects: interaction of viewing conditions and accommodative demand.
abstract: Ten subjects adjusted a real-object probe to match the distance of nearby virtual objects optically presented via a see-through, helmet-mounted display. Monocular, binocular, and stereoscopic viewing conditions were used with two levels of required focus. Observed errors may be related to changes in the subjects' binocular convergence. The results suggest ways in which virtual objects may be presented with improved spatial fidelity.
authors.affiliation: NASA Ames Research Center, Moffett Field, CA 94035, USA.
authors.forename: S R
authors.initials: SR
authors.lastname: Ellis
authors.forename: B M
authors.initials: BM
authors.lastname: Menges
mesh_terms: D003196:Computer Graphics; D003198:Computer Simulation; D003626:Data Display; D003867:Depth Perception; D006804:Ergonomics; D006801:Humans; D013028:Space Perception; D013647:Task Performance and Analysis; D014584:User-Computer Interface; D015348:Vision, Binocular; D015349:Vision, Monocular