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The Illusion of Perceived metric Structure
Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Information Science. Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Information Technology, Human-Computer Interaction.
Uppsala University, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Faculty of Social Sciences, Department of Information Science. Teknisk-naturvetenskapliga vetenskapsområdet, Mathematics and Computer Science, Department of Information Technology, Human-Computer Interaction.
2002 (English)In: Proceedings of InfoVis 2002, IEEE Symposium on Information Visualization, 2002, 51-56 p.Conference paper, Published paper (Refereed)
Abstract [en]

We present a first effort to evaluate the possible utility of a new type of surface glyphs intended for visualizations of multivariate spatial data. The glyphs are based on results from vision research suggesting that our perception of metric 3D structure is distorted and imprecise relative to the actual scene before us; only a class of qualitative properties of the scene is perceived with accuracy. These properties are best characterized as being invariant over affine but not Euclidean transformations. A large number of possible 3D glyphs for the visualization of spatial data can be constructed using such properties. One group is based on the local sign of surface curvature. We investigated these properties in two visualization experiments. The results show that available sources of 3D structural information were sufficient for our subjects to make fast and accurate judgments. Some implications for visualization are discussed.

Place, publisher, year, edition, pages
2002. 51-56 p.
National Category
Social Sciences
Identifiers
URN: urn:nbn:se:uu:diva-78472ISBN: 076951751 (print)OAI: oai:DiVA.org:uu-78472DiVA: diva2:106385
Available from: 2006-11-20 Created: 2006-11-20

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Lind, MatsForsell, Camilla

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