New Contrast Measures for Pixel Supersampling

  • Jaume Rigau
  • Miguel Feixas
  • Mateu Sbert


Ray tracing is a straightforward and powerful image synthesis technique but usually requires many rays per pixel to eliminate the aliasing or noise in the final image. However, not all the pixels in the image require the same quantity of rays. In this paper we introduce new measures for supersampling refinement criteria, based on colour and geometry. These measures use the entropy, one of the most relevant Information Theory concepts. All the new measures are compared with other classic contrast measures.

Keywords: contrast, entropy, pixel quality, pixel sampling, supersampling.


Colour Component Colour Contrast Pixel Colour Colour Fraction Geometric Quality 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag London 2002

Authors and Affiliations

  • Jaume Rigau
    • 1
  • Miguel Feixas
    • 1
  • Mateu Sbert
    • 1
  1. 1.Institut d’Informàtica i AplicacionsUniversitat de GironaGironaSpain

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