Global ETD Search

31	Lepší vymezení herního prostoru pro VR pomocí 3D sensorů / Better Chaperone Bounds Using 3D Sensors Tinka, Jan January 2018 (has links) Room-scale tracking encourages users to move more freely and even walk. Even though there has been much research on making the limited physical workspace feel larger in the VR, these approaches have their limitations and require certain conditions to be met. This thesis proposes an alternative approach to the conventional play-area boundaries of high-end VR products such as the HTC Vive and Oculus Rift which are set by the user in a 2-D fashion as a means of enhance workspace utilization. A 3-D scanner is used to make a 3-D point-cloud model of the play area's surroundings. This model is then used to detect collisions and provide feedback to the user. Evaluation based on user tests showed that this approach can be useful, is well accepted by users and might be worth further research.
32	Investigating Cognitive and Persuasive Effects of 360-degree Virtual Reality Community News Narratives on Memory Performance, Presence, Perception of Credibility, and Attitude Change Atkins, Daniel Aaron 01 June 2020 (has links) No description available. Cognitive Psychology Experiments Experimental Psychology Journalism Mass Communications Mass Media 360 , virtual reality VR community journalism emerging technology VR news immersion presence persuasion attitude change journalist credibility 360VR LC4MP Oculus on-screen reporter attention allocation memory performance
33	The Application of Fuzzy Logic and Virtual Reality in the Study of Ancient Methods and Materials Used for the Construction of the Great Wall of China in Jinshanling Yang, Jin Rong 14 August 2018 (has links) No description available. Civil Engineering History Great Wall of China Jinshanling Virtual Reality Oculus Rift 3D Models SolidWorks Fuzzy Sets Fuzzy Logic defuzzification engineering history and heritage fire kiln bricks rammed earth
34	Bezpečnostní analýza virtuální reality a její dopady / Security Analysis of Immersive Virtual Reality and Its Implications Vondráček, Martin January 2019 (has links) Virtuální realita je v současné době využívána nejen pro zábavu, ale i pro práci a sociální interakci, kde má soukromí a důvěrnost informací vysokou prioritu. Avšak bohužel, bezpečnostní opatření uplatňovaná dodavateli softwaru často nejsou dostačující. Tato práce přináší rozsáhlou bezpečnostní analýzu populární aplikace Bigscreen pro virtuální realitu, která má více než 500 000 uživatelů. Byly využity techniky analýzy síťového provozu, penetračního testování, reverzního inženýrství a dokonce i metody pro application crippling. Výzkum vedl k odhalení kritických zranitelností, které přímo narušovaly soukromí uživatelů a umožnily útočníkovi plně převzít kontrolu nad počítačem oběti. Nalezené bezpečnostní chyby umožnily distribuci škodlivého softwaru a vytvoření botnetu pomocí počítačového červa šířícího se ve virtuálních prostředích. Byl vytvořen nový kybernetický útok ve virtální realitě nazvaný Man-in-the-Room. Dále byla objevena bezpečnostní chyba v Unity engine. Zodpovědné nahlášení objevených chyb pomohlo zmírnit rizika pro více než půl milionu uživatelů aplikace Bigscreen a uživatele všech dotčených aplikací v Unity po celém světě.
35	Abschlussbericht VRmed - Virtual Reality in der medizinischen Lehre: Ein Projekt der Medizinischen Fakultät der Universität Leipzig, Referat Lehre, Bereich Medien Lachky, Alexander, Eckardt, Franziska, Stange, Ingmar, Schwarzer, Max-Philip 13 December 2021 (has links) The advance of digitization influences medical sciences in various areas, increasingly including medical education. Therefore the Teaching Department of the Medical Faculty of the University of Leipzig constantly considers new technical developments and their possibilities for use in medical teaching. The focus is on the fact that teaching should be supplemented and explicitly not replaced by digital media. Virtual reality (hereinafter referred to as 'VR') represents a technology that can be expected to offer promising potential. In order to determine to what extent VR represents an added value for the study of human medicine and which hardware and software is suitable, the project VRmed – Virtual Reality in Medical Teaching was initiated in the Media section of the Teaching Department of the MF. This was funded as part of the Digital Fellowship Program by the University Didactic Center Saxony and the Working Group E-Learning of the LRK Saxony. The present report represents the final report of the project, which was created on its own initiative. In order to investigate the question of implementation possibilities for medical studies, four VR glasses (three different models) and four VR applications were purchased. Two simulation applications and two anatomy applications were selected as applications. The former are i:medtasim and StepVR applications. In addition, the anatomy applications 3D Organon VR Anatomy and Medicalholodeck were purchased. The initially extensive multi-stage evaluation with lecturers and students could not be implemented in 2020/2021 due to the pandemic-related restrictions and was therefore only applied in limited extent. Thus, hardware and software were evaluated qualitatively and in depth in the context of three presentation events by lecturers and media didactics. In particular, the simulation applications are considered to be helpful and useful extensions for teaching. The anatomy application 3D Organon VR Anatomy could also be used profitably in medical studies, especially in the early semesters. With regard to i:medtasim, there are initial considerations to include this in the curriculum as part of a medical elective. Another perspective is the establishment of a VR lab in which students and lecturers can freely use the technology. It should also be noted that VR is associated with many technical challenges and both the setup and the first use require expertise. In addition, the purchase is cost-intensive and hardware and software develop very quickly. Nevertheless, the potentials and the added value predominate. VR can be used to meet a wide range of learning types, practice scenarios bridge the gap between theory and practice, and students and lecturers can connect to technical developments.:1. Einleitung 2. Theoretische Hinführung 3. VR an Medizinischen Fakultäten und Universitäten außerhalb des Standorts Leipzig 4. Projektbeschreibung VRmed – Virtual Reality in der medizinischen Lehre Leipzig 5. VR Hardware und Software für den medizinischen Einsatz 6. Evaluation 7. Fazit und Ausblick 8. Literaturverzeichnis 9. Online-Quellen Anhang A) Projektstrukturplan B) Zeitplan C) Poster D) Evaluationsprotokolle / Das Voranschreiten der Digitalisierung beeinflusst die Medizin in verschiedenen Bereichen, weshalb deren Relevanz auch im Medizinstudium zunimmt. Daher werden im Referat Lehre der Medizinischen Fakultät der Universität Leipzig stetig neue technische Entwicklungen und deren Möglichkeiten für den Einsatz in der medizinischen Lehre betrachtet. Im Fokus steht, dass die Lehre ergänzt und explizit nicht durch digitale Medien ersetzt werden soll. Virtual Reality (im Folgenden „VR“) stellt dabei eine Technologie dar, die in der ersten Auseinandersetzung vielversprechende Potentiale erwarten lässt. Um festzustellen, inwiefern VR einen Mehrwert für das Humanmedizinstudium darstellt und welche Hard- und Software dabei in Frage kommt, wurde im Bereich Medien des Referats Lehre der MF das Projekt VRmed – Virtual Reality in der medizinischen Lehre initiiert. Dies wurde im Rahmen des Digital Fellowship-Programms vom Hochschuldidaktischen Zentrum Sachsen und dem Arbeitskreis E-Learning der LRK Sachsen gefördert. Der hier vorliegende Bericht stellt den Abschlussbericht des Projektes dar, welcher aus Eigenantrieb erstellt wurde. Um der Frage nach Implementierungsmöglichkeiten für das Medizinstudium nachzugehen, wurden vier VR-Brillen (drei verschiedene Modelle) und vier VR-Anwendungen angeschafft. Als Anwendungen wurden zwei Simulationsanwendungen und zwei Anatomieanwendungen ausgewählt. Bei ersterem handelt es sich um die Anwendungen i:medtasim und StepVR. Zudem wurden die Anatomieanwendungen 3D Organon VR Anatomy und Medicalholodeck eingekauft. Die zunächst umfangreich angelegte mehrstufige Evaluation mit Dozierenden und Studierenden konnte aufgrund der pandemiebedingten Einschränkungen in den Jahren 2020/2021 nicht umgesetzt werden und wurde eingegrenzt. Somit wurde Hard- und Software im Rahmen von drei Präsentationsveranstaltungen von Dozierenden und Mediendidaktiker:innen qualitativ und tiefgehend evaluiert. Insbesondere die Simulationsanwendungen werden als hilfreiche und sinnvolle Erweiterungen für die Lehre eingeschätzt. Auch die Anatomieanwendung 3D Organon VR Anatomy könnte im Medizinstudium, insbesondere in die frühen Semester, gewinnbringend eingesetzt werden. Bezüglich i:medtasim existieren erste Überlegungen, dies im Rahmen eines humanmedizinischen Wahlfachs in das Curriculum einzubinden. Eine weitere Perspektive ist die Etablierung eines VR-Labs, in dem Studierende und Dozierende die Technik frei nutzen können. Es bleibt auch festzuhalten, dass VR mit vielen technischen Herausforderungen verbunden ist und sowohl das Einrichten als auch die erste Nutzung Expertise bedürfen. Zudem ist die Anschaffung kostenintensiv und Hard- und Software entwickeln sich sehr schnell. Dennoch überwiegen die Potentiale und der Mehrwert. Durch VR kann vielfältigen Lerntypen begegnet werden, durch Übungsszenarien wird eine Brücke zwischen Theorie und Praxis geschlagen und Studierende wie auch Dozierende können an technische Entwicklungen anschließen.:1. Einleitung 2. Theoretische Hinführung 3. VR an Medizinischen Fakultäten und Universitäten außerhalb des Standorts Leipzig 4. Projektbeschreibung VRmed – Virtual Reality in der medizinischen Lehre Leipzig 5. VR Hardware und Software für den medizinischen Einsatz 6. Evaluation 7. Fazit und Ausblick 8. Literaturverzeichnis 9. Online-Quellen Anhang A) Projektstrukturplan B) Zeitplan C) Poster D) Evaluationsprotokolle info:eu-repo/classification/ddc/610 ddc:610
36	Implementation and Analysis of Co-Located Virtual Reality for Scientific Data Visualization Jordan M McGraw (8803076) 07 May 2020 (has links) <div>Advancements in virtual reality (VR) technologies have led to overwhelming critique and acclaim in recent years. Academic researchers have already begun to take advantage of these immersive technologies across all manner of settings. Using immersive technologies, educators are able to more easily interpret complex information with students and colleagues. Despite the advantages these technologies bring, some drawbacks still remain. One particular drawback is the difficulty of engaging in immersive environments with others in a shared physical space (i.e., with a shared virtual environment). A common strategy for improving collaborative data exploration has been to use technological substitutions to make distant users feel they are collaborating in the same space. This research, however, is focused on how virtual reality can be used to build upon real-world interactions which take place in the same physical space (i.e., collaborative, co-located, multi-user virtual reality).</div><div><br></div><div>In this study we address two primary dimensions of collaborative data visualization and analysis as follows: [1] we detail the implementation of a novel co-located VR hardware and software system, [2] we conduct a formal user experience study of the novel system using the NASA Task Load Index (Hart, 1986) and introduce the Modified User Experience Inventory, a new user study inventory based upon the Unified User Experience Inventory, (Tcha-Tokey, Christmann, Loup-Escande, Richir, 2016) to empirically observe the dependent measures of Workload, Presence, Engagement, Consequence, and Immersion. A total of 77 participants volunteered to join a demonstration of this technology at Purdue University. In groups ranging from two to four, participants shared a co-located virtual environment built to visualize point cloud measurements of exploded supernovae. This study is not experimental but observational. We found there to be moderately high levels of user experience and moderate levels of workload demand in our results. We describe the implementation of the software platform and present user reactions to the technology that was created. These are described in detail within this manuscript.</div> Software Engineering Computer Software Computer Graphics Simulation and Modelling Virtual Reality and Related Simulation Mobile Technologies Networking and Communications Computer-Human Interaction Collaborative Virtual Reality Virtual Reality Collaborative Virtual Reality Networking Networked VR Mulitplayer Multiplayer VR Data Visualization Data Exploration Head Mounted Display Cyberspace Augmented Reality Emerging Technologies Consumer Devices Virtual Environment Virtual Aesthetics Collaborative VR Simulation Training Simulation and Training Colocated Colocated Virtual Environment Immersive Media Immersive Technology Collaborative Tools Educational Virtual Environment Point Cloud Representations Isosurface Representations Mesh Smoothng Supernova Supernovae Supernova Remnant Modeling Astronomy and Astrophysics Cassiopeia N132D E0102 Crab Nebula CAVE CAVE Theater Mobile VR Virtual Classrooms STEM Workload Workload Assessment Tool Presence Engagement Immersion Experience Consequence Simulator sickness Simulator Sickness Questionnaire NASA TLX NASA Task Load Index Unified User Experience Quesionnaire Modified User Experience Questionnaire Oculus Oculus Go Oculus Quest Novel Solutions Optitrack Motive Motion Capture Mocap User Experience Unity3D Game Engine Lidgren Room Scale VR Hall Scale VR Co-location Colocation Virtual Training Collaborative Virtual Environments Shared Virtual Environments Collaboration Whiteboard Mobile Virtual Reality VR HMD LAN UX CSCL UXQ TLX AR VE CVE 3D UI EVE
37	Virtual reality in tourism. Opportunity or pitfall? : Explorative case study of a place-based virtual reality experience of Mariebergsskogen / Virtuell verklighet i turismen. Möjlighet eller fallgrop? : En explorativ fallstudie om en platsbaserade virtuell verklighet upplevelse av Mariebergsskogen Kubitzek, Barbara January 2021 (has links) To what extent can virtual reality be used to induce real-life tourism? This question becomes even more relevant in these covid-19 times. However, research on virtual reality concerning tourism has not engaged substantively with this question yet and thus this study seeks to address this question. This thesis is an explorative case study of the development of the prototype of a place-based virtual reality experience of Mariebergsskogen in Karlstad, Sweden. The purpose of this study is to investigate and show how a place-based virtual reality experience can add value to the experience and promotion of Mariebergsskogen. This thesis goes beyond ocularcentrism highlighting the involvement of senses, the whole body and emotions in experiencing a destination. How can a deeper emotional connection to a destination be evoked through virtual reality revealing the characteristics, uniqueness and rootedness of the place? A geomedia approach is taken that combines a sensitivity to place with media to arrive at a multi-dimensional view of Mariebergsskogen considering place representations, engagements and its roots to history. Place is conceptualized by recourse to Lefebvre’s (2011) spatial triad: lived, perceived and imagined that are in a dialectic relationship. The methodological model created has been informed by the project on place-based digital experiences (PDU) at the University of Karlstad in Sweden. Tourists are considered active agents in creating tourism destinations and this study emphasizes their engagement as co-creators in the prototype development process. A methodological model is proposed that combines a place analysis with workshops consisting of a user study and a co-creation workshop supplemented with insights from interviews with virtual reality developers and stakeholders from Region Värmland and Karlstad Municipality. Virtual reality tourism virtual reality co-creation geomedia place-based virtual reality experiences place marketing Region Värmland Karlstad Municipality Mariebergsskogen experience design interaction design storytelling cultural heritage covid-19 pandemic communication Sweden case-study film 360° Lefebvre digital experiences destination marketing VR film cinematic virtual reality metaverse UX UI Skansen Sweden Visit Sweden Visit Värmland design processes Oculus Quest Google cardboard NFT methodological model PDU innovation marketing Virtuelle Realität Tourismus Marketing Schweden Geomedia Experience Design Kommunikation Covid-19 Pandemie Fallstudie Sinne Kultur Park Umwelt Virtuell Verklighet turism Karlstad Kommun Region Värmland Kommunikation pandemi kulturellt arv plats berättelse Interaction Technologies Interaktionsteknik Earth and Related Environmental Sciences Geovetenskap och miljövetenskap Studies on Film Filmvetenskap Communication Studies Kommunikationsvetenskap Economics and Business Ekonomi och näringsliv History Historia Cultural Studies Kulturstudier Computer and Information Sciences Data- och informationsvetenskap Human Computer Interaction Social Sciences Samhällsvetenskap Humanities and the Arts Humaniora och konst Engineering and Technology Teknik och teknologier Natural Sciences Naturvetenskap

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