Mr. Michal Meironke Profile

Michal Meironke

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Optoelectronics

Publications (2)

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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

Read Abstract +

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.

Proceedings Article | 7 August 2017 Paper

Modeling of luminance distribution in CAVE-type virtual reality systems

Michał Meironke, Adam Mazikowski

Proceedings Volume 10445, 104451U (2017) https://doi.org/10.1117/12.2280869

KEYWORDS: Virtual reality, 3D modeling, Systems modeling, Projection systems, 3D visualizations, Scattering, Solids, Electronics, Telecommunications, Information science

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At present, one of the most advanced virtual reality systems are CAVE-type (Cave Automatic Virtual Environment) installations. Such systems are usually consisted of four, five or six projection screens and in case of six screens arranged in form of a cube. Providing the user with a high level of immersion feeling in such systems is largely dependent of optical properties of the system. The modeling of physical phenomena plays nowadays a huge role in the most fields of science and technology. It allows to simulate work of device without a need to make any changes in the physical constructions.

In this paper distribution of luminance in CAVE-type virtual reality systems were modelled. Calculations were performed for the model of 6-walled CAVE-type installation, based on Immersive 3D Visualization Laboratory, situated at the Faculty of Electronics, Telecommunications and Informatics at the Gdańsk University of Technology. Tests have been carried out for two different scattering distribution of the screen material in order to check how these characteristicinfluence on the luminance distribution of the whole CAVE.

The basis assumption and simplification of modeled CAVE-type installation and results were presented. The brief discussion about the results and usefulness of developed model were also carried out.

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