Analytic PCA construction for theoretical analysis of lighting variability , including attached shadows , in a single image of a convex Lambertian object

  • Ravi Ramamoorthi ravir
  • Published 2001


We analyze theoretically the subspace best approximating images of a convex Lambertian object under different distant illumination conditions. Since the lighting is an arbitrary function, the space of all possible images is formally infinite-dimensional. However, previous empirical work by Hallinan [7] and Epstein et al. [4] has shown that images of largely… (More)

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