Estimation of Altitude in Stereoscopic-3D Versus 2D Real-world Scenes

Deas, Lesley; Allison, Robert S.; Hartle, Brittney; Irving, Elizabeth L.; Glaholt, Mackenzie G.; Wilcox, Laurie M.

doi:10.2352/issn.2470-1173.2017.5.sda-355

Cited by 3 publications

(7 citation statements)

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“…Similar to Deas et al (2017), our altitude esti-mation task used stereoscopic images that depict a low hover scenario with four terrain types. The images were rendered from the point of view of a seated individual looking down and to the left out of a helicopter door (rotation of 45° in pitch and yaw), past a virtual skid with a “real” extension, to the ground plane below.…”

Section: Methodsmentioning

confidence: 99%

“…Others have shown improvements in similar tasks that correlate with stereoscopic acuity (Winterbottom, Lloyd, Gaska, Wright, & Hadley, 2016). We showed previously that the presence of stereopsis improved the accuracy of altitude judgments for simulated imagery depicting a low hover flight operation (Deas et al, 2017). Undergraduate observers estimated the altitude of a virtual helicopter skid relative to the simulated ground plane in several terrain conditions under monocular and binocular viewing.…”

Section: Introductionmentioning

confidence: 97%

“…The aim of Deas et al (2017) was to determine if, and to what extent, stereopsis benefits aviation tasks performed by rotary-wing aircrew. We found that when monocular texture cues and binocular disparity were available, observers showed accurate altitude judgments relative to theoretical predictions but substantially underestimated altitude when only monocular cues were present.…”

Section: Introductionmentioning

confidence: 99%

“…We found that when monocular texture cues and binocular disparity were available, observers showed accurate altitude judgments relative to theoretical predictions but substantially underestimated altitude when only monocular cues were present. However, observers in Deas et al’s (2017) study were undergraduate students with no flight-related training or experience. It is possible that the task-specific training that rotary-wing aircrew receive could improve monocular altitude judgments, that is, when binocular depth cues are unavailable.…”

Section: Introductionmentioning

confidence: 99%

“…The aim of the current study was to determine whether the pattern of binocular and monocular performance in Deas et al (2017) holds for rotary-wing aircrew. Using methods similar to Deas et al (2017), we compared performance of a large sample of undergraduate observers with that of a group of military rotary-wing aircrew. We used a simulated low hover task in which observers judged the relative distance between a helicopter skid and the ground plane.…”

Section: Introductionmentioning

confidence: 99%

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Contributions of Stereopsis and Aviation Experience to Simulated Rotary Wing Altitude Estimation

et al. 2019

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Objective We examined the contribution of binocular vision and experience to performance on a simulated helicopter flight task. Background Although there is a long history of research on the role of binocular vision and stereopsis in aviation, there is no consensus on its operational relevance. This work addresses this using a naturalistic task in a virtual environment. Method Four high-resolution stereoscopic terrain types were viewed monocularly and binocularly. In separate experiments, we evaluated performance of undergraduate students and military aircrew on a simulated low hover altitude judgment task. Observers were asked to judge the distance between a virtual helicopter skid and the ground plane. Results Our results show that for both groups, altitude judgments are more accurate in the binocular viewing condition than in the monocular condition. However, in the monocular condition, aircrew were more accurate than undergraduate observers in estimating height of the skid above the ground. Conclusion At simulated altitudes of 5 ft (1.5 m) or less, binocular vision provides a significant advantage for estimation of the depth separation between the landing skid and the ground, regardless of relevant operational experience. However, when binocular cues are unavailable aircrew outperform undergraduate observers, a result that likely reflects the impact of training on the ability to interpret monocular depth cues.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Contributions of Stereopsis and Aviation Experience to Simulated Rotary Wing Altitude Estimation

et al. 2019

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Optical and gravito-inertial contributions to the perception and control of height in a simulated Low-Altitude Flight context

et al. 2021

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Immersive Design Engineering

Sommer¹,

Lee²,

Martin³

et al. 2020

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Design Engineering is an innovative field that usually combines a number of disciplines, such as material science, mechanics, electronics, and/or biochemistry, etc. New immersive technologies, such as Virtual Reality (VR) and Augmented Reality (AR), are currently in the process of being widely adapted in various engineering fields. It is a proven fact that the modeling of spatial structures is supported by immersive exploration. But the field of Design Engineering reaches beyond standard engineering tasks. With this review paper we want to achieve the following: define the term “Immersive Design Engineering”, discuss a number of recent immersive technologies in this context, and provide an inspiring overview of work that belongs to, or is related to the field of Immersive Design Engineering. Finally, the paper concludes with definitions of research questions as well as a number of suggestions for future developments.

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Estimation of Altitude in Stereoscopic-3D Versus 2D Real-world Scenes

Cited by 3 publications

References 0 publications

Contributions of Stereopsis and Aviation Experience to Simulated Rotary Wing Altitude Estimation

Contributions of Stereopsis and Aviation Experience to Simulated Rotary Wing Altitude Estimation

Optical and gravito-inertial contributions to the perception and control of height in a simulated Low-Altitude Flight context

Immersive Design Engineering

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