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A Task-Based View on the Visual Analysis of Eye-Tracking Data Read chapter Read first chapter

2017 | OriginalPaper | Chapter

Visualizing Dynamic Ambient/Focal Attention with Coefficient \(K\)

Authors : A. T. Duchowski, K. Krejtz

Published in: Eye Tracking and Visualization

Publisher: Springer International Publishing

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Abstract

Using coefficient \(\mathcal{K}\), defined on a parametric scale, derived from processing a traditionally eye-tracked time course of eye movements, we propose a straightforward method of visualizing ambient/focal fixations in both scanpath and heatmap visualizations. The \(\mathcal{K}\) coefficient indicates the difference of fixation duration and following saccade amplitude expressed in standard deviation units, facilitating parametric statistical testing. Positive and negative ordinates of \(\mathcal{K}\) indicate focal or ambient fixations, respectively, and are colored by luminance variation depicting relative intensity of focal fixation.

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previous chapter Visual Data Cleansing of Low-Level Eye-Tracking Data
next chapter Eye Fixation Metrics for Large Scale Evaluation and Comparison of Information Visualizations
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Metadata
Title
Visualizing Dynamic Ambient/Focal Attention with Coefficient
Authors
A. T. Duchowski
K. Krejtz
Copyright Year
2017
Book
Eye Tracking and Visualization

Print ISBN: 978-3-319-47023-8

Electronic ISBN: 978-3-319-47024-5

Copyright Year: 2017

DOI
https://doi.org/10.1007/978-3-319-47024-5_13

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