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- Fachbereich - Medien (36) (remove)
In this paper we propose an integrated immersive augmented reality solution for a software tool supporting spacecraft design and verification. The spacecraft design process relies on expertise in many domains, such as thermal and structural engineering. The various subsystems of a spacecraft are highly interdependent and have differing requirements and constraints. In this context, interactive visualizations play an important role in making expert knowledge accessible. Recent immersive display technologies offer new ways of presenting and interacting with computer-generated content. Possibilities and challenges for spacecraft configuration employing these technologies are explored and discussed. A user interface design for an application using the Microsoft HoloLens is proposed. To this end, techniques for selecting a spacecraft component and manipulating its position and orientation in 3D space are developed and evaluated. Thus, advantages and limitations of this approach to spacecraft configuration are revealed and discussed.
This article describes the possibilities and problems that occur using the SteamVR tracking 2.0 system as a camera tracking system in a virtual studio and explains an approach for implementation and calibration within a professional studio environment. The tracking system allows for cost effective deployment. Relevant application fields are also mixed reality recording and streaming of AR and VR experiences.
Acquiring human motion data from video images plays an important role in the field of computer vision. Ground truth tracking systems require markers to create high quality motion data. But in many applications it is desired to work without markers. In recent years affordable hardware for markerless tracking systems was made available at a consumer level. Efficient depth camera systems based on Time-of-Flight sensors and structured light systems have made it possible to record motion data in real time. However, the gap between the quality of marker-based and markerless systems is high. The error sources of a markerless motion tracking pipeline are discussed and a model-based filter is proposed, which adapts depending on spatial location. The proposed method is then proven to be more robust and accurate than the unfiltered data stream and can be used to visually enhance the presence of an actor within a virtual environment in live broadcast productions.
Agile Lernsettings zur Entwicklung der digital literacy – Perspektiven für die Hochschullehre
(2018)
Die Buzzwords Agilität und Digitalisierung sind in aller Munde. Durch den damit verbundenen digitalen Wandel benötigt der Arbeitsmarkt Personal mit hoher Digitalkompetenz, und zwar über alle Branchen und Berufsprofile hinweg. Doch wie lässt sich das erreichen? Welchen Part können und sollten Hochschulen in der Entwicklung der digital literacy übernehmen? Anhand konkreter Beispiele aus der Lehrpraxis zeigt der Vortrag auf, wie agile Konzepte und digitale Medien in neuen Lernsettings zusammenwirken können, um die Studierenden besser auf eine zunehmend digitalisierte Lebens- und Arbeitswelt vorzubereiten.
Videomitschnitt der Vorlesung ist verfügbar. Siehe related URL.
Augmented reality for supporting manual non-destructive ultrasonic testing of metal pipes and plates
(2018)
We describe an application of augmented reality technology for non-destructive testing of products in the metal-industry. The prototype is created with hard- and software, that is usually employed in the gaming industry, and delivers positions for creating ultra- sonic material scans (C-scans). Using a stereo camera in combination with an hmd enables realtime visualisation of the probes path, as well as the setting of virtual markers on the specimen. As a part of the implementation the downhill simplex optimization algorithm is implemented to fit the specimen to a cloud of recorded surface points. The accuracy is statistically tested and evaluated with the result, that the tracking system is accurate up to ca. 1-2 millimeters in well set-up conditions. This paper is of interest not only for research institutes of the metal-industry, but also for any areas of work, in which the enhancement with augmented reality is possible and a precise tracking is necessary.
Classification of Beyond-Reality Interaction Techniques in Spatial Human-Computer Interaction
(2018)
Cliffhanger-VR
(2018)
Die Digitalisierung kommt – auch in der Hochschullehre. Daran besteht kein Zweifel. Die Frage ist nur: Wann, wo und wie die deutsche Hochschullandschaft dem unaufhaltsamen Trend begegnen wird, um sowohl im nationalen wie auch internationalen Vergleich attraktiv und wettbewerbsfähig zu bleiben. Eine Mammutaufgabe, zu deren erfolgreicher Bewältigung viele verschiedene „Stellschrauben“ gedreht werden müssen. Welche das sind, wer sie betätigen muss und wohin die Reise letztendlich führen kann – darauf sucht der 1. HIGHER EDUCATION Summit 2018 kreative, kontroverse und visionäre Antworten.
Veranstaltet vom neuen FORUM Higher Education, bringt der programmatisch hochwertige und intensive Tageskongress führende Denker, Entscheider und Anwender digitaler Lern- und Lehrlösungen für den Hochschulbetrieb aus dem deutschsprachigen Raum zusammen.
Mixed reality telepresence is becoming an increasingly popular form of interaction in social and collaborative applications. We are interested in how created virtual spaces can be archived, mapped, shared, and reused among different applications. Therefore, we propose a decentralized blockchain-based peer-to-peer model of distribution, with virtual spaces represented as blocks. We demonstrate the integration of our system in a collaborative mixed reality application and discuss the benefits and limitations of our approach.