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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Designing a VR user experience test regarding the Vergence-Accommodation Conflict : An investigation surrounding the relations to Depth Perception

Estemyr, Emil, Ekhagen, Alexander January 2023 (has links)
This bachelor project investigates how to design a virtual reality (VR) user experience test to analyze the effect that the vergence-accommodation conflict (VAC) has on a users ability to judge focus. Furthermore, we want to investigate how the amount of depth cues can affect a user's perception of this conflict in VR. A user experience test has been designed through an iterative process where the prototype has gone through smaller user tests between each iteration. We validate the design through testing a larger number of participants, where we gather subjective data through the use of the “Think Aloud Method” as well as data based on the user's interactions within the test environment. Analyzed results show that the absence of depth cues makes it significantly harder for users to judge depth and focus, and that the presence of an additional reference-object in many cases is enough to assist users with this issue. Furthermore, we notice better user performance at closer distances. The aim of this investigation is to provide more information surrounding the perception of VAC, as it is one of the few issues within the VR industry that prevents us from experiencing depth in virtual worlds in a more realistic way. / Detta kandidatarbete undersöker hur man kan designa ett test i virtuell verklighet (VR) kring användarens upplevelse för att analysera effekten som "Vergence-Accommodation Conflict” (VAC) har på användarens förmåga att bedöma fokus. Vidare vill vi också ta reda på hur mängden ledtrådar för djupseende kan påverka användarens upplevelse av denna konflikt i VR. Ett test för användarens upplevelse har designats genom en iterativ process där prototypen genomgått mindre tester mellan iterationerna. Designen valideras genom ett större användartest där vi samlar subjektiv data genom användning av “Think Aloud Method” samt data baserat på användarens interaktion i testmiljön. Analyserad data visar att frånvaron av ledtrådar för djup har en betydande påverkan på användarens förmåga att bedöma djup och fokus, samt att närvaron av ytterligare ett referensobjekt i många fall är tillräckligt för att hjälpa användaren med detta problem. Vidare har vi kunnat se en bättre prestationsförmåga hos användarna på närmare distanser. Syftet med denna undersökning är att tillföra mer information kring upplevelsen av VAC, då det är ett av de få problem inom VR-industrin som hindrar oss från att uppleva djup i virtuella världar på ett mer realistiskt sätt.
2

Near-eye GUI in VR

Nauclér Löfving, Johan January 2023 (has links)
VR systems are rapidly becoming more advanced, soon making the Vergence Accommodation Conflict a non-issue. The prospect of having commercially available VR systems without VAC issues invites designers and academics to consider what impact this may have on GUI design in VR. In an effort to provide a foundation for future studies on GUI in VR, this paper explores how a near-eye GUI affects the player experience and suggests what areas should be further studied based on the results.
3

Influence of the Vergence-Accommodation-Conflict by Using HMDs with Augmented Reality for Sport and Exercises - First Results

Bartaguiz, Eva, Mukhametov, Sergey, Dindorf, Carlo, Ludwig, Oliver, Kuhn, Jochen, Fröhlich, Michael 14 October 2022 (has links)
To improve the performance and capabilities of athletes, augmented reality could play an important role in exercise training. During training, these technologies support athletes in analyzing their training over all phases. Regardless of all potential advantages, the vergence-accommodation-conflict (VAC) could affect the effectiveness of training and performance. This work is aimed to evaluate the effect of VAC in different conditions. / Um die Leistungen und Fähigkeiten von Sportlern zu verbessern, könnte Augmented Reality eine wichtige Rolle im Training spielen. Während des Trainings unterstützen diese Technologien die Sportler bei der Analyse ihres Trainings in allen Phasen. Ungeachtet aller potenziellen Vorteile könnte der Vergenz-Akommodations-Konflikt (VAC) die Effektivität des Trainings und der Leistung beeinträchtigen. Ziel dieser Arbeit ist es, die Wirkung des VAC unter verschiedenen Bedingungen zu bewerten.

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