University of Konstanz
Graduiertenkolleg / PhD Program
Computer and Information Science

Graduation Talks


Perceptual Artifacts in Visual Analytics


Sebastian Mittelstädt, University Konstanz
Konstanz, Germany

date & place

Wednesday, 26.06.2013, 13:00 h
Room G 309


Information Visualization makes use of the hu- man visual system to comprehend huge amounts of data and to facilitate understanding of both large-scale and small- scale features. Our cognition processes enable us to perceive even low emergent properties in large data sets that were not anticipated. However, our visual system can be biased in several ways which is harmful for our hypothesis form- ing. On the signal processing levels we are biased by, for example, color constancy and brightness e ects, which let us perceive color di erently as it really is. Since in several visualization techniques we use color to express informa- tion, these e ects could have huge impact on the analysis. However, these e ects could also be used for enriching vi- sualizations. The main goal of my thesis is to compensate physiological e ects in information visualization and to apply these novel techniques in di erent application domains, such as cyber physical infrastructures or medical data analysis.