A limited flight study for investigating hyperstereo vision

Kalich, Melvyn E.; Rash, Clarence E.; McLean, William E.; Ramiccio, John

doi:10.1117/12.717219

Cited by 10 publications

(17 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We observed cases where entire layers are omitted, but there can still be good continuity within layer regions and layer boundaries that fit well to occluded objects in the ground truth representations. Nevertheless we know from [3] and [7] that using hyperstereo in too near of a field of view can greatly affect a user's performance and visual experience. Furthermore, it is still unclear as to how segmentations defined on a continuous object will be perceived.…”

Section: Discussionmentioning

confidence: 99%

“…For example, use of hyperstereo apparatus for viewing of distant terrain and enhanced target acquisition at 2-km [5]. Other positive perceptual acceptance of hyperstereo vision was reported in flight studies involving helicopter pilots [7]. The authors report the ability of hyperstereo vision to be useful for piloting tasks at distances greater than 30-m.…”

Section: Introductionmentioning

confidence: 91%

See 1 more Smart Citation

A novel 3D display using multi-hyperstereo image stitching

Ashby

Etienne‐Cummings

2011

2011 45th Annual Conference on Information Sciences and Systems

View full text Add to dashboard Cite

2-D displays present significant visualization deficits and can hinder task performance when accurate perception of depth is required. Navigation of rugged terrain, scouting, and object detection at a distance all present limitations when viewed on traditional 2-D displays. The current investigation presents a novel use of stereo and hyperstereo image pairs to create a 3-D representation of the visual scene. Use of the stereo base pair provides natural depth perception for near-field viewing, while hyperstereo image pairs augment natural depth acuity for distant scenes.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 91%

A novel 3D display using multi-hyperstereo image stitching

Ashby

Etienne‐Cummings

2011

2011 45th Annual Conference on Information Sciences and Systems

View full text Add to dashboard Cite

show abstract

“…One of the factors that precipitated this study was a hyperstereo HMD test flight study completed at the USAARL, Fort Rucker, AL, in 2007 (Kalich et al, 2007). In the previous study a total of five subjects participated in flight evaluations Bowl effect strong-runway hitting in my chest Reaching for ground with to overcome bowl effect; lowering collective, move forward, eventually skids will hit the ground.…”

Section: Discussionmentioning

confidence: 99%

“…It is known that separating the distance between I 2 sensors creates perceptual distortions that are listed under the heading of hyperstereopsis. These were discussed in some detail by Kalich et al (2007). These distortions include exaggerated stereoscopic depth perception and making near objects appear closer and larger than normal (Figures 2 and 3).…”

Section: Introductionmentioning

confidence: 95%

Flight performance using a hyperstereo helmet-mounted display: post-flight debriefing questionnaire

et al. 2009

Self Cite

View full text Add to dashboard Cite

Helmet-mounted display (HMD) designs have faced persistent head-supported mass and center of mass (CM) problems, especially HMD designs like night vision goggles (NVG) that utilize image intensification (I 2 ) sensors mounted forward in front of the user's eyes. Relocating I 2 sensors from the front to the sides of the helmet, at or below the transverse plane through the user's head CM, can resolve most of the CM problems. However, the resulting increase in the separation between the two I 2 channels effectively increases the user's interpupillary distance (IPD). This HMD design is referred to as a hyperstero design and introduces the phenomenon of hyperstereopsis, a type of visual distortion where stereoscopic depth perception is exaggerated, particularly at distances under 200 feet (~60 meters). The presence of hyperstereopsis has been a concern regarding implementation of hyperstereo HMDs for rotary-wing aircraft. To address this concern, a flight study was conducted to assess the impact of hyperstereopsis on aircraft handling proficiency and pilot acceptance. Three rated aviators with differing levels of I 2 and hyperstereo HMD experience conducted a series of flights that concentrated on low-level maneuvers over a two-week period. Initial and final flights were flown with a standard issue I 2 device and a production hyperstereo design HMD. Interim flights were flown only with the hyperstereo HMD. Two aviators accumulated 8 hours of flight time with the hyperstereo HMD, while the third accumulated 6.9 hours. This paper presents data collected via written questionnaires completed by the aviators during the post-flight debriefings. These data are compared to questionnaire data from a previous flight investigation in which aviators in a copilot capacity, hands not on the flight controls, accumulated 8 flight hours of flight time using a hyperstereo HMD.

show abstract

“…Hyperstereopsis also makes near objects appear closer than they are, giving an impression that the near ground is coming up to meet you ( Figure 3). The exaggerated perspective of hyperstereo I 2 can also interact with the aircraft windscreen strut configuration making causing confusion (Kalich et al, 2007). There are other distortions as well.…”

Section: Introductionmentioning

confidence: 99%

Perceptual design tradeoff considerations for viewing I²and FLIR with current helmet-mounted displays

2008

Self Cite

View full text Add to dashboard Cite

Providing both I 2 (image intensified) and FLIR (forward looking infrared) images on a helmet-mounted display (HMD) requires perceptual design tradeoffs. Primary considerations center on the number, type, and placement of sensors. Perceptual drivers for these tradeoffs are derived from monocular versus biocular/binocular displays and offset of the sensors from the design eye. These conditions can create binocular rivalry, perceptual perspective distortion or hyperstereopsis, a binocular perceptual distortion that occurs when the sensors are positioned further apart than the interpupillary distance (IPD). Each of these perceptual tradeoff considerations is discussed.

show abstract

A limited flight study for investigating hyperstereo vision

Cited by 10 publications

References 0 publications

A novel 3D display using multi-hyperstereo image stitching

A novel 3D display using multi-hyperstereo image stitching

Flight performance using a hyperstereo helmet-mounted display: post-flight debriefing questionnaire

Perceptual design tradeoff considerations for viewing I²and FLIR with current helmet-mounted displays

Contact Info

Product

Resources

About

A limited flight study for investigating hyperstereo vision

Cited by 10 publications

References 0 publications

A novel 3D display using multi-hyperstereo image stitching

A novel 3D display using multi-hyperstereo image stitching

Flight performance using a hyperstereo helmet-mounted display: post-flight debriefing questionnaire

Perceptual design tradeoff considerations for viewing I2and FLIR with current helmet-mounted displays

Contact Info

Product

Resources

About

Perceptual design tradeoff considerations for viewing I²and FLIR with current helmet-mounted displays