&lt;title&gt;Effects of in-flight field-of-view restriction on rotorcraft pilot head movement&lt;/title&gt;

Kasper, Eugene F.; Haworth, Loran A.; Szoboszlay, Zoltan; King, Robert D.; Halmos, Zsolt L.

doi:10.1117/12.276658

Cited by 12 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They found that yaw and downward pitch head movements increased as field-of-view decreased. Kasper et al (1997) reported similar observations during flight tests.…”

Section: Effects Of Field-of-view Limitationssupporting

confidence: 84%

Handling qualities comparison of panoramic night vision goggles and 46-deg. night vision goggles

2003

View full text Add to dashboard Cite

Night Vision Goggles allow the user to see in extremely low illumination levels but the visual information provided by Night Vision Goggles has a limited field-of-view that diminishes handling-qualities in the night flying environment. Panoramic Night Vision Goggles were designed to correct this problem by providing a 100º horizontal field-of-view which is larger than currently used Night Vision Goggles. However, in the first generation Panoramic Night Vision Goggle, the improved field of view came at the cost of diminished resolution, contrast and central overlap area when compared to conventional Night Vision Goggles. This paper describes an evaluation that was conducted in the variable stability NRC Bell-205 helicopter to examine the influence on system handling qualities of the Panoramic Night Vision Goggles and a 46º field-of-view UK Night Vision Goggle. Five pilots flew the ADS-33D hover, sidestep and pirouette manoeuvres in simulated night conditions with the UK Night Vision Goggle and the Panoramic Night Vision Goggle. Both subjective and objective measures of task performance were obtained. Handling-qualities ratings showed the pirouette was performed better with the Panoramic Night Vision Goggles. This was the only manoeuvre where there was a clear-cut handling qualities improvement when using the Panoramic Night Vision Goggles. Other manoeuvres such as the sidestep and hover did not show definitive handling qualities rating differences between the two Night Vision Goggle types. The flight test results were interpreted in terms of the design trade-offs of the two night vision systems, with regard to the different acuity, binocular overlaps and fieldsof-view.

show abstract

“…They found that yaw and downward pitch head movements increased as field-of-view decreased. Kasper et al (1997) reported similar observations during flight tests.…”

Section: Effects Of Field-of-view Limitationssupporting

confidence: 84%

Handling qualities comparison of panoramic night vision goggles and 46-deg. night vision goggles

2003

View full text Add to dashboard Cite

show abstract

“…Our conclusion is that there is a risk of decrease in user performance in task 2, when FOV reaches values under 75 deg. This value is similar to the ones found by other research teams, [1][2][3] that is, between 40 and 80 deg.…”

Section: Test 1: Does Fov Have An Influence Onsupporting

confidence: 81%

“…These studies allow us to suggest that a limit value around 80 deg horizontally might be sufficient. However, these results are not applicable to our application: the studies of Arthur 1 have been conducted in virtual environments different for aircraft cockpits; the work of Kasper et al 2 have been led on flying tasks in real helicopters; the tests of Schiefele 3 were made in virtual cockpits, but for tasks different from visual ergonomics. Therefore, we have developed tests on different participants, in order to determine correctly the limit values to apply to our virtual cockpit application.…”

Section: Human Field Of View In Virtual Environmentsmentioning

confidence: 99%

“…He showed that there is an increase of performances when FOV increases and is lower than 100 deg. Related works in real environments with helicopter cockpits 2 or virtual environments but with noncockpit tasks 3 prove that there is an increase of performances when FOV increases, until it reaches a limit value, depending on the task, between 40 and 80 deg. These studies allow us to suggest that a limit value around 80 deg horizontally might be sufficient.…”

Section: Human Field Of View In Virtual Environmentsmentioning

confidence: 99%

See 1 more Smart Citation

Field-of-view tests for a virtual cockpit application

Chevaldonné

Ballaz

Merienne

et al. 2006

J. Electron. Imaging

View full text Add to dashboard Cite

Abstract. The virtual cockpit application aims to perform ergonomics studies on future aircraft cockpits, directly from digital mock-ups. This is made possible by immersing a user in a digital IntroductionFor years, the production process has tended to decrease the time to market in the aircraft industry. Concurrent engineering gives powerful opportunities for conception and production of aircraft cockpits. It is largely based on digital mock-ups ͑DMU͒, as they enable communication between numerous professionals working on the project. A DMU is a numerical version of a product containing all the information relative to it. It is easy to upgrade and to adapt. This enables to follow a product all along its life cycle. A physical mock-up ͑PMU͒ is a physical version of a product, containing part of the information relative to it, at a given time, and then does not permit following the product during its life cycle. Design processes based on DMU allow savings of time and money by decreasing the number of PMU. However, it is difficult to take into account human factors within DMU, because human-product interactions are not well taken into consideration in DMU. That is why PMU are often used for human factors studies. A good alternative to PMU are virtual mock-ups ͑VMU͒. They are based on DMU and enable immersion and interaction within a virtual representation of the product. Thus, they allow us to evaluate concepts and detect issues linked to the ergonomics or

show abstract

“…A possible explanation may be the fact that participants were free to make head movements. Previous studies have shown that observers tend to compensate for a reduction of their instantaneous visual field by making larger head movements 7,9,18,24 . It appears that the effects of instantaneous field-of-view restrictions can be compensated to some degree through the construction of an "effective field-of-view", that can be obtained by sweeping the instantaneous field-of-view over a larger region of space (i.e.…”

Section: Discussionmentioning

confidence: 99%

Effects of field of view on human locomotion

et al. 2008

View full text Add to dashboard Cite

Field of view (FOV) restrictions are known to impair human performance for a range of different tasks. However, the effects of FOV restrictions on human locomotion through a complex environment are still not clear. This is particularly important for the development and deployment of FOV restricting devices like Head Mounted Displays (HMD's), which generally have FOV's that are much smaller than the unrestricted FOV. We investigated the effects of both horizontal and vertical FOV restrictions on the walking speed and head movements of participants manoeuvring through complex 3D obstacle courses. All FOV restrictions tested significantly increased the time needed to complete the courses, compared to the unrestricted condition. The time needed to traverse a course was significantly longer for a vertical FOV of 18° than for a vertical FOV of 48°. For a fixed vertical FOV size, the traversal time was constant for horizontal FOV sizes ranging between 75° and 180°, and increased significantly for the 30° horizontal FOV condition. The implications of the current findings for the development of devices with FOV restrictions (like HMD's) are discussed.

show abstract

<title>Effects of in-flight field-of-view restriction on rotorcraft pilot head movement</title>

Cited by 12 publications

References 0 publications

Handling qualities comparison of panoramic night vision goggles and 46-deg. night vision goggles

Handling qualities comparison of panoramic night vision goggles and 46-deg. night vision goggles

Field-of-view tests for a virtual cockpit application

Effects of field of view on human locomotion

Contact Info

Product

Resources

About