Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. REPORT DATE (DD-MM-YYYY)2. REPORT TYPE 3. DATES COVERED (From -To) SPONSORING / MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR/MONITOR'S ACRONYM(S)AFRL; AFRL/HEA SPONSOR/MONITOR'S REPORT NUMBER(S) Air Force Research Laboratory Human Effectiveness Directorate Warfighter Readiness Research Division 6030 South Kent Street Mesa AZ 85212-6061 AFRL-HE-AZ-TP-2007-03 DISTRIBUTION / AVAILABILITY STATEMENTApproved for public release; distribution is unlimited. SUPPLEMENTARY NOTESThis paper was originally published in the journal Human Factors (Volume 48, Fall 2006). ABSTRACTObjective: We provide a review and analysis of much of the published literature on visual perception issues that impact the design and use of head-mounted displays (HMDs). Background: Unlike the previous literature on HMDs, this review draws heavily from the basic vision literature in order to help provide insight for future design solutions for HMDs. Method: Included in this review are articles and books found cited in other works as well as articles and books obtained from an Internet search. Results: Issues discussed include the effect of brightness and contrast on depth of field, dark focus, dark vergence, and perceptual constancy; the effect of accommodation/vergence synergy on perceptual constancy, eyestrain, and discomfort; the relationship of field of view to the functioning of different visual pathways and the types of visualmotor tasks mediated by them; the relationship of binocular input to visual suppression; and the importance of head movements, head tracking, and display update lag. Conclusion: This paper offers a set of recommendations for the design and use of HMDs. Application: Consideration of the basic vision literature will provide insight for future design solutions for HMDs.
Abstract— This updated review paper provides a selected review of a number of important perceptual and human‐factors issues that arise when stereo displays are designed and used. This review and analysis draws heavily from the basic vision literature in order to help provide insight for future design solutions for stereo displays. Issues discussed include: (1) the basics of human stereopsis (horopter, binocular disparity, binocular rivalry); (2) low‐level factors (interocular cross talk, interocular differences in luminance and contrast, accommodation‐vergence mismatch, stereoanomaly); (3) contextual factors (spatio‐temporal frequency effects, distance scaling of disparity); and (4) a high‐level cognitive factor (high‐level cue conflict). In this updated review, significant new material has been added: (1) interocular luminance and contrast differences and their effect on stereo viewing; (2) more insightful discussion of accommodative‐vergence mismatch; (3) high‐level cognitive factor. Two topics in the earlier review (visual pathways; dark focus and dark vergence) have been deleted. The paper concludes with the presentation of several recommendations for the design of stereo displays.
This paper provides a selected review of a number of important perceptual and humanfactors issues that arise when 3-D displays are designed and used. This review and analysis draws heavily from the basic vision literature in order to help provide insight for future design solutions for 3-D displays. Issues discussed include (1) the basics of human stereopsis, (2) interocular crosstalk, (3) oculomotor responding and distance scaling of binocular disparity information, (4) accommodativevergence mismatch, and (5) stereoanomly. The paper concludes with a presentation of several recommendations for the design of 3-D displays.
This paper reviews much of the basic literature on stereopsis for the purpose of providing information about the ability of humans to utilize stereoscopic information under operational conditions. This review is organized around five functional topics that may be important for the design of many stereoscopic display systems: geometry of stereoscopic depth perception, visual persistence, perceptual interaction among stereoscopic stimuli, neurophysiology of stereopsis, and theoretical considerations. The paper concludes with the presentation of several basic ideas related to the design of stereoscopic displays.
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