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2012

A 2D Flow Visualization User Study Using Explicit Flow Synthesis and Implicit Task Design

9 years 3 months ago
A 2D Flow Visualization User Study Using Explicit Flow Synthesis and Implicit Task Design
—This paper presents a 2D flow visualization user study that we conducted using new methodologies to increase the objectiveness. We evaluated grid-based variable-size arrows, evenly spaced streamlines, and line integral convolution (LIC) variants (basic, oriented, and enhanced versions) coupled with a colorwheel and/or rainbow color map, which are representative of many geometry-based and texture-based techniques. To reduce data-related bias, template-based explicit flow synthesis was used to create a wide variety of symmetric flows with similar topological complexity. To suppress task-related bias, pattern-based implicit task design was employed, addressing critical point recognition, critical point classification, and symmetric pattern categorization. In addition, variable-duration and fixed-duration measurement schemes were utilized for lightweight precision-critical and heavyweight judgmentintensive flow analysis tasks, respectively, to record visualization effectiveness. We elim...
Zhanping Liu, Shangshu Cai, J. Edward Swan II, Rob
Added 28 Sep 2012
Updated 28 Sep 2012
Type Journal
Year 2012
Where TVCG
Authors Zhanping Liu, Shangshu Cai, J. Edward Swan II, Robert J. Moorhead II, Joel P. Martin, T. J. Jankun-Kelly
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