Geometric Point Light Source Calibration

  title={Geometric Point Light Source Calibration},
  author={Jens Ackermann and Simon Fuhrmann and Michael Goesele},
We present a light position calibration technique based on a general arrangement of at least two reflective spheres in a single image. Contrary to other techniques we do not directly intersect rays for triangulation but instead solve for the optimal light position by evaluating the image-space error of the light highlights reflected from the spheres. This approach has been very successful in the field of Structure-from-Motion estimation. It has not been applied to light source calibration… CONTINUE READING
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