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Localization of Virtual Objects in the Near Visual Field (Operator Interaction with Simple Virtual Objects)Errors in the localization of nearby virtual objects presented via see-through, helmet mounted displays are examined as a function of viewing conditions and scene content in four experiments using a total of 38 subjects. Monocular, biocular or stereoscopic presentation of the virtual objects, accommodation (required focus), subjects' age, and the position of physical surfaces are examined. Nearby physical surfaces are found to introduce localization errors that differ depending upon the other experimental factors. These errors apparently arise from the occlusion of the physical background by the optically superimposed virtual objects. But they are modified by subjects' accommodative competence and specific viewing conditions. The apparent physical size and transparency of the virtual objects and physical surfaces respectively are influenced by their relative position when superimposed. The design implications of the findings are discussed in a concluding section.
Document ID
20040053389
Acquisition Source
Ames Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Ellis, Stephen R.
(NASA Ames Research Center Moffett Field, CA, United States)
Menges, Brian M.
(San Jose State Univ. CA, United States)
Date Acquired
August 21, 2013
Publication Date
July 20, 1998
Subject Category
Optics
Meeting Information
Meeting: MMM''98 Conference
Start Date: October 12, 1998
End Date: October 14, 1998
Funding Number(s)
PROJECT: RTOP 199-06-12
Distribution Limits
Public
Copyright
Public Use Permitted.
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