Viewpoint Animation With a Dynamic Tether for Supporting Navigation in a Virtual Environment

Wang, Wenbi; Milgram, Paul

doi:10.1177/0018720809340031

Cited by 7 publications

(8 citation statements)

References 21 publications

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“…Typical display formats are egocentric or first-person perspective (1PP), exocentric or third-person perspective (3PP) and tethered viewpoints (e.g. Haskell andWickens 1993, Wang andMilgram 2009). …”

Section: View Modesmentioning

confidence: 99%

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Augmenting full colour-fused multi-band night vision imagery with synthetic imagery in real-time

Toet¹,

Hogervorst²,

Son

et al. 2011

International Journal of Image and Data Fusion

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We present the design and first field trial results of an all-day all-weather enhanced and synthetic-fused multi-band colour night vision surveillance and observation system. The system augments a fused and dynamic three-band natural-colour night vision image with synthetic 3D imagery in real-time. The night vision sensor suite consists of three cameras, sensitive in, respectively, the visual (400-700 nm), the near-infrared (NIR, 700-1000 nm) and the long-wave infrared (LWIR, 8-14 mm) bands of the electromagnetic spectrum. The optical axes of the three cameras are aligned. Image quality of the fused sensor signals is enhanced in real-time through dynamic noise reduction, super resolution and local adaptive contrast enhancement. The quality of the LWIR image is enhanced through scene-based non-uniformity correction. The visual and NIR signals are used to represent the fused multi-band night vision image in natural daytime colours, using the Colour-the-Night colour remapping technique. Colour remapping can also be deployed to enhance the visibility of thermal targets that are camouflaged in the visual and NIR range of the spectrum. The dynamic false-colour night-time images are augmented with corresponding synthetic 3D scene views, generated in real-time using a geometric 3D scene model in combination with position and orientation information supplied by the Global Positioning System and inertial sensors of the system. Initial field trials show that this system provides enhanced situational information in various low-visibility conditions.

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Section: View Modesmentioning

confidence: 99%

“…The virtual tether may either be rigid (e.g. Haskell and Wickens 1993) or dynamic (Wang and Milgram 2009). Tethered viewing generally yields intermediate performance on both relative position and global situational awareness tasks (Lamb and Hollands 2005b).…”

Section: View Modesmentioning

confidence: 99%

Augmenting full colour-fused multi-band night vision imagery with synthetic imagery in real-time

Toet¹,

Hogervorst²,

Son

et al. 2011

International Journal of Image and Data Fusion

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show abstract

“…As the operator directs the vehicle to the right, the viewpoint of the virtual camera shifts to the left. The rigid tether also behaves like a compensatory tracking system (Colquhoun & Milgram, 2000) and can produce a jerky motion with a long tether because any small angular change in vehicle heading produces a large displacement of the virtual camera and hence the entire visual scene (Wang & Milgram, 2009).…”

Section: Tethered Displaysmentioning

confidence: 99%

Viewpoint Tethering for Remotely Operated Vehicles: Effects on Complex Terrain Navigation and Spatial Awareness

Hollands

Lamb

2011

Hum Factors

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“…As the UAV flies through the environment, the operator's view of the video moves with it, with surrounding areas of the map providing context. This type of tethered viewpoint has been shown to improve situation awareness and performance over ego-centric viewpoints in a variety of applications [19][20] [17] as well as PiP displays [1].…”

Section: Introductionmentioning

confidence: 99%

SUAVE: Integrating UAV video using a 3D model

Abedin

Wang

Lewis

et al. 2011

2011 IEEE International Conference on Systems, Man, and Cybernetics

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Controlling an unmanned aerial vehicle (UAV) requires the operator to perform continuous surveillance and path planning. The operator's situation awareness degrades as an increasing number of surveillance videos must be viewed and integrated. The Picture-in-Picture display (PiP) provides a solution for integrating multiple UAV camera video by allowing the operator to view the video feed in the context of surrounding terrain. The experimental SUAVE (Simple Unmanned Aerial Vehicle Environment) display extends PiP methods by sampling imagery from the video stream to texture a 3D map of the terrain. The operator can then inspect this imagery using world in miniature (WIM) or fly-through methods. We investigate the properties and advantages of SUAVE in the context of a search mission with 3 UAVs.

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Viewpoint Animation With a Dynamic Tether for Supporting Navigation in a Virtual Environment

Abstract: Guidelines generated from this study support future viewpoint design in interactive virtual reality applications.

Cited by 7 publications

References 21 publications

Augmenting full colour-fused multi-band night vision imagery with synthetic imagery in real-time

Augmenting full colour-fused multi-band night vision imagery with synthetic imagery in real-time

Viewpoint Tethering for Remotely Operated Vehicles: Effects on Complex Terrain Navigation and Spatial Awareness

SUAVE: Integrating UAV video using a 3D model

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