Virtual Reality Lab

VR-Lab displaying a robotic map while superwising the excavator robot "Arter" (bottom right, photo DFKI)
VR-Lab displaying a robotic map while superwising the excavator robot ARTER (bottom right, photo DFKI)

Description

The Virtual Reality Lab – the so-called CAVE – is an immersive, interactive 3D test environment.
The projection consists of seven elements in an 180° arrangement. Each element has a width of 1.52 m and a height of 2.03 m; in addition, a 40 cm base. The overall projection thus has an area of 21.6 m².
To give a spatial impression, the projection is stereoscopic. Each of the seven elements is illuminated by two projectors. A projector generates the image for the right and the other the image for the left eye. For the separation of the images linear polarization filters are used, mounted on the projectors. The viewer gets a pair of glasses with two different polarized glasses, so that he sees a 3D image with depth information.
An omnidirectional treadmill (Omnideck), which is located in the center between the projection screens, allows free and unlimited movement in the virtual world and can thus increase immersion. It can be used with a VR headset or in combination with the projection screens.

Technical specifications:

Projection surface: 21,6 m²
Beamer:14 x Sanyo PLC-ET10L with 1400 x 1050 Pixel 
Resolution 2D: Approx. 10,3 megapixel 
Resolution 3D:
Approx. 20,6 megapixel 
Casing: 3 x APC NetShelter SX with each 42HU
18 x render clients and master
CPU: Core i7-8700k
Computer:
GPU: nVidia GTX 1080
1 x server
1 x file-backup
Network:
3 x Cisco 10 Gigabit Ethernet Switch
Data glove: CyberTouch
InterSense Tracking: Hand/headtracker and wand
Input devices:
HTC Vive Controller and Tracker
3D-mouse
Gamepad
Handtracker
Handtracker
3D-mouse
3D-mouse
CyberTouch
CyberTouch
Wand
Wand

Virtual Crater

The real system SpaceClimber in front of the SpaceClimber simulation (Photo: David Schikora, DFKI GmbH)
The real system SpaceClimber in front of the SpaceClimber simulation (Photo: David Schikora, DFKI GmbH)

The Virtual Reality Lab was originally set up within the project Virtual Crater. The goal of this project was to develop a virtual test environment (virtual testbed) in which it is possible to program, test, and optimize robot systems in a realistically simulated lunar crater at low cost.

Currently, the VR-Lab serves as an interactive and immersive control station for semi-autonomous robots, which can visualize the robots' maps, i.e., their environment, in three dimensions and enable monitoring and control of the systems.

Panoramic image of the seven projector screens, the outer screens are opposing each other in reality (photo: DFKI)
Panoramic image of the seven projector screens, the outer screens are opposing each other in reality (photo: DFKI)
© DFKI GmbH
last updated 05.09.2022
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