Ms. Magda Szymaniak Profile

Magda Szymaniak

at Gdańsk Univ. of Technology

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Proceedings Article | 7 August 2017 Paper

Investigation of tracking systems properties in CAVE-type virtual reality systems

Magda Szymaniak, Adam Mazikowski, Michał Meironke

Proceedings Volume 10445, 104451T (2017) https://doi.org/10.1117/12.2280866

KEYWORDS: Virtual reality, 3D visualizations, Glasses, Cameras, Optical tracking, Telecommunications, Imaging systems, Electromagnetism, Visualization, Acoustics

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In recent years, many scientific and industrial centers in the world developed a virtual reality systems or laboratories. One of the most advanced solutions are Immersive 3D Visualization Lab (I3DVL), a CAVE-type (Cave Automatic Virtual Environment) laboratory. It contains two CAVE-type installations: six-screen installation arranged in a form of a cube, and four-screen installation, a simplified version of the previous one.

The user feeling of “immersion” and interaction with virtual world depend on many factors, in particular on the accuracy of the tracking system of the user. In this paper properties of the tracking systems applied in I3DVL was investigated. For analysis two parameters were selected: the accuracy of the tracking system and the range of detection of markers by the tracking system in space of the CAVE.

Measurements of system accuracy were performed for six-screen installation, equipped with four tracking cameras for three axes: X, Y, Z. Rotation around the Y axis was also analyzed. Measured tracking system shows good linear and rotating accuracy. The biggest issue was the range of the monitoring of markers inside the CAVE. It turned out, that the tracking system lose sight of the markers in the corners of the installation. For comparison, for a simplified version of CAVE (four-screen installation), equipped with eight tracking cameras, this problem was not occur. Obtained results will allow for improvement of cave quality.

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