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Die volumetrische Erfassung von Aushüben auf Baustellen ist ein kostenrelevanter Faktor und wird auch heute im täglichen Baustellenbetrieb oft noch in manueller Detailarbeit durchgeführt. Kostengünstige Sensoren zur Tiefenerfassung ermöglichen die halbautomatische Erfassung von Baugruben. Augmented Reality (AR) kann für diesen Prozess das nötige Feedback liefern. Vorgestellt wird ein Prototyp, bestehend aus einem Tablet mit integrierter Kamera und einem Lidar-Scanner. Es wird die Erfassung des Volumens bezüglich Nutzbarkeit und Genauigkeit mit Einsatz von AR getestet und evaluiert. Zur Bestimmung des Volumens wird unter Verwendung von Strahlen mit Unterstützung einer Grafik-Engine ein Algorithmus entwickelt. Der Algorithmus ist robust gegen nicht vollständig geschlossene Volumen. Die Bedienung, Überprüfung und Visualisierung findet durch praktischen Einsatz von AR statt.
The “Journal of Virtual Reality and Broadcasting” is an open access E-journal covering advanced media technology for the integration of human computer interaction and modern information systems. The main focus is on the creation of synergies between such basic technologies as computer graphics and state-of-the-art broadcasting techniques.
The main goals are to publish research results in the field of Virtual Reality and Broadcasting, to provoke discussions, and to promote the exchange of ideas and information. Developments in the area have a direct effect on society, therefore social aspects will also be considered. As an interdisciplinary field Virtual Reality requires multilateral collaboration in order to enable new applications.
RB publishes articles consecutively and in electronic form only. All articles are peer-reviewed in a strict review process by at least three independent experts from the appropriate field of research and appear in the English language. The articles are organized in one volume per year with ten to twenty articles. Material that has been previously presented at conferences undergo a major revision and are extended and modified by the authors with at least 20% new material according to the Journal's policy for previously published articles. The Journal has been established in 2004.
Currently, the submission and publication of articles is free of charge. No author fees are applied.
We report about several experiments on applying mixed reality technology in the context of accessing collective memories from atomic bombs, Holocaust and Second World War. We discuss the impact of Virtual Reality, Augmented Virtuality and Augmented Reality for specific memorial locations. We show how to use a virtual studio for demonstrating an augmented reality application for a specific location in a remote session within a video conference. Augmented Virtuality is used to recreate the local environment, thus providing a context and helping the participants recollect emotions related to a certain place. This technique demonstrates the advantages of using virtual (VR) and augmented (AR) reality environments for rapid prototyping and pitching project ideas in a live remote setting.
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.
Live video streaming is becoming increasingly popular as a form of interaction in social applications. One of its main advantages is an ability to immediately create and connect a community of remote users on the spot. In this paper we discuss how this feature can be used for crowdsourced completion of simple visual search tasks (such as finding specific objects in libraries and stores, or navigating around live events) and social interactions through mobile mixed reality telepresence interfaces. We present a prototype application that allows users to create a mixed reality space with a photospherical imagery as a background and interact with other connected users through viewpoint, audio, and video sharing, as well as realtime annotations in mixed reality space. Believing in the novelty of our system, we conducted a short series of interviews with industry professionals on the possible applications of our system. We discuss proposed use-cases for user evaluation, as well as outline future extensions of our system.
Der fünfzehnte Workshop "Virtuelle und Erweiterte Realität" der Fachgruppe VR/AR der Gesellschaft für Informatik e.V. wurde an der Hochschule Düsseldorf vom 10.-11.10.2018 durchgeführt. Als etablierte Plattform für den Informations- und Ideenaustausch der deutschsprachigen VR/AR-Szene bot der Workshop den idealen Rahmen, aktuelle Ergebnisse und Vorhaben aus Forschung und Entwicklung – auch provokative Ideen – im Kreise eines fachkundigen Publikums zur Diskussion zu stellen. Insbesondere wurde auch jungen Nachwuchswissenschaftlern die Möglichkeit gegeben, ihre Arbeiten zu präsentieren; darunter fielen laufende Promotionsvorhaben oder auch herausragende studentische Arbeiten von Hochschulen und Forschungseinrichtungen. Das Programmkomitee hat 12 Lang- und 6 Kurzbeiträge aus über 29 Gesamteinreichungen ausgewählt. Die Beiträge decken das Spektrum der Virtuellen und Erweiterten Realität ab. Der Workshop fand am 10. Oktober gleichzeitig mit dem Innovationstag des Innovationshubs in Düsseldorf statt. Für einen Beitrag eigneten sich alle Themenfelder der "Virtuellen und Erweiterten Realität", insbesondere:
3D Eingabegeräte und Interaktionstechniken
Avatare und Agenten
Displaytechnologien und Tracking
(Echtzeit-)Rendering
Education und Edutainment
Entertainment und Experiences
Gesellschaft und soziotechnische Aspekte
Human Factors
Industrielle Einsatzszenarien
Innovative Anwendungen
Künstlerische Anwendungen
Modellierung und Simulation
Multimodale Interaktion
Systemarchitekturen und Intelligente Umgebungen
Verteilte und kooperative VR/AR-Umgebungen
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.
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.
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.