The Evaluation of Perceptual Effectiveness of Isosurface Rendering-based Uncertainty Visualization Techniques for Volumetric Scalar Data

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dc.contributor.authorMa, Jien_US
dc.contributor.authorMurphy, Daviden_US
dc.contributor.authorProvan, Gregoryen_US
dc.contributor.authorO'Mathuna, Cianen_US
dc.contributor.authorHayes, Michaelen_US
dc.contributor.editorSilvester Czanner and Wen Tangen_US
dc.date.accessioned2014-01-31T20:18:42Z
dc.date.available2014-01-31T20:18:42Z
dc.date.issued2013en_US
dc.description.abstractMany techniques have been proposed to convey uncertainty in visualization. However, little research has been reported on the evaluation of their effectiveness.We present a user study that evaluates the perceptual effectiveness of six (four new and two existing) isosurface rendering-based uncertainty visualization techniques. For every technique, we consider its four effectiveness aspects: identification of the data, identification of the uncertainty, visual overload and brightness. There are thirty users participated in the user study and statistical analysis has been made for this study. Our analysis suggested that the two existing uncertainty visualization techniques appear to be the most advantageous in all the evaluated techniques. Both of them have high scores in all the four aspects of the effectiveness. In terms of the new techniques, the transparency technique appears to be the most promising. Whilst the remaining three new techniques may have some utility in certain aspects of the effectiveness, they are less useful in other aspects of the effectiveness. Additionally, a surprising result we have found is that adding auxiliary grid lines as background is not guaranteed to enhance the participants' perception to the errors depicted by the transparency. Conversely, it may lead to visual overload that increases the difficulty to recognize data. We believe that these findings can be useful for future uncertainty visualization design.en_US
dc.description.seriesinformationTheory and Practice of Computer Graphicsen_US
dc.identifier.isbn978-3-905673-98-2en_US
dc.identifier.urihttps://doi.org/10.2312/LocalChapterEvents.TPCG.TPCG13.025-032en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectI.3.m [Computer Graphics]en_US
dc.subjectMiscellaneousen_US
dc.titleThe Evaluation of Perceptual Effectiveness of Isosurface Rendering-based Uncertainty Visualization Techniques for Volumetric Scalar Dataen_US
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