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Designing a VR user experience test regarding the Vergence-Accommodation Conflict: An investigation surrounding the relations to Depth Perception
Blekinge Institute of Technology.
Blekinge Institute of Technology.
2023 (English)Independent thesis Basic level (degree of Bachelor), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

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.

Abstract [sv]

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.

Place, publisher, year, edition, pages
2023. , p. 25
Keywords [en]
Virtual Reality, Vergence-Accommodation Conflict, Depth Cues, User test, Zone of Comfort
Keywords [sv]
Virtuell verklighet, Vergence-Accommodation Conflict, Ledtrådar för djup (Depth Cues), Användartester, Zone of Comfort
National Category
Human Computer Interaction
Identifiers
URN: urn:nbn:se:bth-25168OAI: oai:DiVA.org:bth-25168DiVA, id: diva2:1781345
External cooperation
Ericsson Research
Subject / course
ME1603 Bachelor's Thesis in Media Technology
Educational program
MEGDD Design of Digital Games
Supervisors
Examiners
Available from: 2023-07-07 Created: 2023-07-07 Last updated: 2023-07-07Bibliographically approved

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Designing a VR user experience test regarding the Vergence-Accommodation Conflict - An investigation surrounding the relations to Depth Perception(1703 kB)45 downloads
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Human Computer Interaction

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Citation style
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