Measuring and Enhancing the Legibility of GPU-rendered Text

  • The limited spatial resolution of standard computer displays impedes the legibility of text. To improve the rendering, we have developed a number of strategies that employ GPU-based shader programs and appropriate preprocessing steps. We devised and implemented a set of methods that may be used alone or in combination ranging from simple measures such as gamma-correct MIPmapping to complex ones such as RGB subpixel rendering combined with supersampling. We have researched into their performance in terms of both legibility and speed. We difinded a psychovisual test that quantifies legibility quickly enough to compare a selection of promising techniques. The results allow to choose the optimum blend of rendering methods for a given set of requirements.

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Author:Christoph von Tycowicz, Jörn Loviscach
Document Type:In Proceedings
Parent Title (English):Eurographics 2008 Short Papers
First Page:45
Last Page:48
Year of first publication:2008