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Evaluation on perceived sizes using large-scale augmented floor visualization devices

Published: 12 June 2019 Publication History

Abstract

Large scale output displays are an enabling technology in order to achieve immersive, isometrically registered, virtual environments. Amongst other benefits, pervasive displays allow for more accurate size judgments, better collaboration performance in workshops and less task completion time. Since research still does not offer an holistic view on size perception and reaction time using wall-sized displays, this paper follows a call for research. This evaluation investigates the size judgment accuracy, precision and reaction time using a large scale led floor compared to tablet computer with relative scales. Therefore, an output apparatus is presented using a 54 sqm LED floor surrounded by additional 36 square meters of LED walls. Using this apparatus, 22 participants were provided with the same virtual contents in 3 different scenarios. The baseline scenario (tablet computer) visualizes relative sized geometry, whereas two LED floor scenarios show true to scale (absolute sized) contents. Results indicate that using true to scale visualization of 2D contents on a LED floor reduces mean absolute percentage error (MAPE) of spatial estimations significantly and is the user's preferred visualization device. No systematic over- or underestimation of size judgments could be revealed for all three scenarios. In contrast to that, task completion time rises by using such an apparatus.

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Cited By

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  • (2022)Floor Projection with QR code-based Interactions and Visitor Drawings2022 IEEE 11th Global Conference on Consumer Electronics (GCCE)10.1109/GCCE56475.2022.10014058(318-320)Online publication date: 18-Oct-2022

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    cover image ACM Other conferences
    PerDis '19: Proceedings of the 8th ACM International Symposium on Pervasive Displays
    June 2019
    223 pages
    ISBN:9781450367516
    DOI:10.1145/3321335
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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    Published: 12 June 2019

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    Author Tags

    1. led floor
    2. perception
    3. size judgment
    4. true to scale visualization

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    PerDis '19 Paper Acceptance Rate 26 of 67 submissions, 39%;
    Overall Acceptance Rate 213 of 384 submissions, 55%

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    • (2022)Floor Projection with QR code-based Interactions and Visitor Drawings2022 IEEE 11th Global Conference on Consumer Electronics (GCCE)10.1109/GCCE56475.2022.10014058(318-320)Online publication date: 18-Oct-2022

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