Perceptually Uniform Construction of Illustrative Textures
Anna Sterzik, Monique Meuschke, Douglas W. Cunningham, Kai Lawonn

TL;DR
This paper investigates the perceptual space of illustrative textures like stippling, hatching, and triangles, and constructs perceptually uniform textures to enhance multi-scalar surface encoding in visualization.
Contribution
It systematically analyzes the perceptual spaces of various illustrative textures and develops a method to create perceptually uniform textures for improved visual encoding.
Findings
Perceptual space of stippling and triangles is similar and 1D.
Hatching textures form two perceptual clusters.
Perceptually uniform textures enable better multi-scalar encoding.
Abstract
Illustrative textures, such as stippling or hatching, were predominantly used as an alternative to conventional Phong rendering. Recently, the potential of encoding information on surfaces or maps using different densities has also been recognized. This has the significant advantage that additional color can be used as another visual channel and the illustrative textures can then be overlaid. Effectively, it is thus possible to display multiple information, such as two different scalar fields on surfaces simultaneously. In previous work, these textures were manually generated and the choice of density was unempirically determined. Here, we first want to determine and understand the perceptual space of illustrative textures. We chose a succession of simplices with increasing dimensions as primitives for our textures: Dots, lines, and triangles. Thus, we explore the texture types of…
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Taxonomy
TopicsComputer Graphics and Visualization Techniques · 3D Shape Modeling and Analysis
