Polygonal Light Source Estimation

  • Dirk Schnieders
  • Kwan-Yee K. Wong
  • Zhenwen Dai
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5996)


This paper studies the problem of light estimation using a specular sphere. Most existing work on light estimation assumes distant point light sources, while this work considers an area light source which is estimated in 3D space by reconstructing its edges. An empirical analysis on existing methods for line estimation from a single view is carried out, and it is shown that line estimation for a single view of a sphere is an ill-conditioned configuration.

By considering a second identical sphere, a closed form solution for single view polygonal light estimation is proposed. In addition, this paper also proposes an iterative approach based on two unknown views of just a single sphere. Experimental results on both synthetic and real data are presented.


Single View Sphere Center Line Estimation Intersecting Line Single Sphere 
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 Berlin Heidelberg 2010

Authors and Affiliations

  • Dirk Schnieders
    • 1
  • Kwan-Yee K. Wong
    • 1
  • Zhenwen Dai
    • 1
  1. 1.Department of Computer ScienceThe University of Hong KongHong Kong

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