cVIS - A Software System for Analyzing Visual Perception M Raschke, T Ertl |
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Visualization and Interactive Systems Institute, University of Stuttgart, Germany
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| We are developing the cVIS framework to analyze perceptual and cognitive processes of users who are working with visualizations. The framework supports the analysis with three modules: eye tracking data visualization and analysis, semantic models and a cognitive simulation. We will present results of ongoing work on the development of new visualization techniques for eye tracking data. For example, we are using the parallel scan-path visualization technique [Raschke et al., 2012, Proceedings of the 2012 Symposium on Eye-Tracking Research and Applications, 165-168] besides heat maps and scan path visualizations to analyze the influence of different visualization parameters such as graphical layout, visual data density, line thickness, colors or textures on the visual perception. Today the development of data visualizations is mostly driven by a technical perspective. To support a user centered visualization design process we will show different approaches which are using a semantic annotation of areas on the stimulus for a better understanding of higher cognitive processes such as visual reasoning. Results from eye tracking data analysis and semantic knowledge models of visualizations are used to develop an ACT-R based cognition simulation framework. |
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