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      Evaluating Visual Variables in a Virtual Reality Environment

      proceedings-article
      , , , ,
      34th British HCI Conference (HCI2021)
      Post-pandemic HCI – Living Digitally
      20th - 21st July 2021
      Evaluation, Visual variables, Visualization, Virtual Reality, Eye Tracking, Cognitive load
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            Abstract

            Large amount of multi-dimensional data can be difficult to visualize in standard 2D display. Virtual Reality and the associated 3rd dimension may be useful for data analysis; however, 3D charts may often be confusing to users rather conveying information. This paper investigated and evaluated graphical primitives of 3D charts in a Virtual Reality (VR) environment. We compared six different 3D graphs involving two graph types and five visual variables. We analysed ocular and EEG parameters of users while they undertook representative data interpretation tasks using 3D graphs. Our analysis found significant differences in fixation rate, alpha and low-beta EEG bands among different graphs and a bar chart using different sizes of columns for different data values found to be preferred among users in terms of correct response. We also found that colour makes it easier to interpret nominal data as compared to shape and size variable reduces the time required for processing numerical data as compared to orientation or opacity. Our results can be used to develop 3D sensor dashboard and visualization techniques for VR environments.

            Content

            Author and article information

            Contributors
            Conference
            July 2021
            July 2021
            : 11-22
            Affiliations
            [0001]I3D Lab, Indian Institute of Science

            Bangalore 560012, India
            Article
            10.14236/ewic/HCI2021.1
            d3ae8066-aed2-4f56-a06f-91ef5379eb18
            © Arjun et al. Published by BCS Learning & Development Ltd. Proceedings of the BCS 34th British HCI Conference 2021, UK

            This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

            34th British HCI Conference
            HCI2021
            34
            London, UK
            20th - 21st July 2021
            Electronic Workshops in Computing (eWiC)
            Post-pandemic HCI – Living Digitally
            History
            Product

            1477-9358 BCS Learning & Development

            Self URI (article page): https://www.scienceopen.com/hosted-document?doi=10.14236/ewic/HCI2021.1
            Self URI (journal page): https://ewic.bcs.org/
            Categories
            Electronic Workshops in Computing

            Applied computer science,Computer science,Security & Cryptology,Graphics & Multimedia design,General computer science,Human-computer-interaction
            Visualization,Evaluation,Virtual Reality,Eye Tracking,Cognitive load,Visual variables

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