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Using mutual distance plot and warped time distance chart to compare scan-paths of multiple observers

Published: 25 June 2019 Publication History

Abstract

The aim of the research is the introduction of new techniques that enable a visual comparison of scan-paths. Every eye tracking experiment produces many scan-paths, and one of the main challenges of eye tracking analysis is how two compare these scan-paths. A classic solution is to extract easily measurable features such as fixation durations or saccade lengths. There are also many more sophisticated techniques that compare two scan-paths using only spatial or both spatial and temporal information. These techniques typically return a value (or several values) that may be used as scan-path similarity/distance measure. However, there is still a lack of widely adopted methods that offer not only the measure but enable a visual comparison of scan-paths. The paper introduces two possible options: the Mutual Distance Plot for two scan-paths and the Warped Time Distance chart for the comparison of the theoretically unlimited number of scan-paths. It is shown that these visualizations may reveal information about relationships between two or more scan-paths on straightforward charts. The informativeness of the solution is analyzed using both artificial and real data.

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  • (2024)Identifying K-12 Students' Approaches to Using Worked Examples for Epistemic ProgrammingProceedings of the 2024 Symposium on Eye Tracking Research and Applications10.1145/3649902.3655094(1-7)Online publication date: 4-Jun-2024
  • (2021)Glimpse: A Gaze-Based Measure of Temporal SalienceSensors10.3390/s2109309921:9(3099)Online publication date: 29-Apr-2021

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  1. Using mutual distance plot and warped time distance chart to compare scan-paths of multiple observers

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    cover image ACM Conferences
    ETRA '19: Proceedings of the 11th ACM Symposium on Eye Tracking Research & Applications
    June 2019
    623 pages
    ISBN:9781450367097
    DOI:10.1145/3314111
    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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    Publication History

    Published: 25 June 2019

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    Author Tags

    1. eye movements
    2. tensor
    3. visualization

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    • Statutory Research funds of Institute of Informatics, Silesian University of Technology, Gliwice, Poland

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    View all
    • (2024)Identifying K-12 Students' Approaches to Using Worked Examples for Epistemic ProgrammingProceedings of the 2024 Symposium on Eye Tracking Research and Applications10.1145/3649902.3655094(1-7)Online publication date: 4-Jun-2024
    • (2021)Glimpse: A Gaze-Based Measure of Temporal SalienceSensors10.3390/s2109309921:9(3099)Online publication date: 29-Apr-2021

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