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Title:
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Improving perception accuracy in bar charts with internal contrast and framing enhancements
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Author:
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Díaz Iriberri, José; Meruvia Pastor, Oscar; Vázquez Alcocer, Pere Pau
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Ciències de la Computació; Universitat Politècnica de Catalunya. ViRVIG - Grup de Recerca en Visualització, Realitat Virtual i Interacció Gràfica |
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Abstract:
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Bar charts are among the most commonly used visualization graphs. Their main goal is to communicate quantities that can be visually compared. Since they are easy to produce and interpret, they are found in any situation where quantitative data needs to be conveyed
(websites, newspapers, etc.). However, depending on the layout, the
perceived values can vary substantially. For instance, previous research
has shown that the positioning of bars (e.g. stacked vs separate) may
influence the accuracy in bar ratio length estimation. Other works
have studied the effects of embellishments on the perception of encoded quantities. However, to the best of the authors’ knowledge, the effect of perceptual elements used to reinforce the quantity depicted within the bars, such as contrast and inner lines, has not been studied in depth. In this research we present a study that analyzes the effect of several internal contrast and framing enhancements with respect to the use of basic solid bars. Our results show that the addition of minimal visual elements that are easy to implement with current technology can help users to better recognize the amounts depicted by the bar charts. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Informàtica::Aplicacions de la informàtica
-Information visualization
-Graphic methods
-Graphical perception
-Evaluation
-User study
-Visualització de la informació
-Mètodes gràfics |
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Rights:
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Document type:
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Article - Submitted version
Conference Object |
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Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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