cs781 - Colour for Computer Graphics - Winter 2012

Course Notes

Lecture 15 - Linear Models of Reflectance

And Now from our Sponsor

  1. Projects
  2. Last three lectures
  3. Talk on flicker hallucinations
    Dr. Bard Ermentrout (Computational Biology, University of Pittsburgh,)
    Flicker Hallucinations: Faraday waves in the brain
    3.30 p.m., Tuesday, 6 March
    MC 5158.

Linear Models of Colour

Where did it come from

Principal Components Analysis

Given a very large sample of data, how can you summarise it?

Weaknesses

  1. The usual least squares problems
  2. Sample dependence
  3. There is usually not a well-defined break point

Possible Remedies

  1. We know the dimension

PCA of Coloured Surfaces

PCA of Coloured Light


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