Light Source Interpolation for Sparsely Sampled Reflectance Fields

  • Chen B
  • Lensch H
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Abstract

In this paper we address the problem of relighting with sparsely sampled reflectance fields. We present a technique that approximates the correct result of relighting from intermediate light source positions. The acquisition of reflectance fields is a time consuming process, and typically the sampling resolution in the light source positions is rather limited. As a consequence, smoothly moving highlights and shadows due to relighting with a moving light source are hard to generate. Using light source interpolation, densely sampled reflectance fields can be simulated, enabling relighting with area light sources and smooth animation of highlights and shadows. Using light source interpolation we can relight with arbitrarily sampled 4D incident light fields from complex or near-by light sources.

Author-supplied keywords

  • Light Field; Surface Based; Lensch Group

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Authors

  • Billy Chen

  • Hendrik P a Lensch

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