Sebastian Pape, M.Sc.
Room K111
Phone: +49 241 80 24378
Fax: +49 241 80 22134
Email: pape@vr.rwth-aachen.de


Poster: Virtual Optical Bench: A VR Learning Tool For Optical Design

Sebastian Pape, Martin Bellgardt, David Gilbert, Georg König, Torsten Wolfgang Kuhlen
IEEE Conference on Virtual Reality and 3D User Interfaces 2021

The design of optical lens assemblies is a difficult process that requires lots of expertise. The teaching of this process today is done on physical optical benches, which are often too expensive for students to purchase. One way of circumventing these costs is to use software to simulate the optical bench. This work presents a virtual optical bench, which leverages real-time ray tracing in combination with VR rendering to create a teaching tool which creates a repeatable, non-hazardous, and feature-rich learning environment. The resulting application was evaluated in an expert review with 6 optical engineers.

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Calibratio - A Small, Low-Cost, Fully Automated Motion-to-Photon Measurement Device

Sebastian Pape, Marcel Krüger, Jan Müller, Torsten Wolfgang Kuhlen
10th Workshop on Software Engineering and Architectures for Realtime Interactive Systems (SEARIS), 2020

Since the beginning of the design and implementation of virtual environments, these systems have been built to give the users the best possible experience. One detrimental factor for the user experience was shown to be a high end-to-end latency, here measured as motionto-photon latency, of the system. Thus, a lot of research in the past was focused on the measurement and minimization of this latency in virtual environments. Most existing measurement-techniques require either expensive measurement hardware like an oscilloscope, mechanical components like a pendulum or depend on manual evaluation of samples. This paper proposes a concept of an easy to build, low-cost device consisting of a microcontroller, servo motor and a photo diode to measure the motion-to-photon latency in virtual reality environments fully automatically. It is placed or attached to the system, calibrates itself and is controlled/monitored via a web interface. While the general concept is applicable to a variety of VR technologies, this paper focuses on the context of CAVE-like systems.

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» Show BibTeX

author = {Sebastian Pape and Marcel Kr\"{u}ger and Jan M\"{u}ller and Torsten W. Kuhlen},
title = {{Calibratio - A Small, Low-Cost, Fully Automated Motion-to-Photon Measurement Device}},
booktitle = {10th Workshop on Software Engineering and Architectures for Realtime Interactive Systems (SEARIS)},
year = {2020},

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