Estimation of position and radius of light probe images

Authors:
Przemysław Mazurek
Affiliations:
Department of Signal Processing and Multimedia Engineering, West Pomeranian University of Technology, Szczecin, Szczecin, Poland
Venue:
ICCVG'12 Proceedings of the 2012 international conference on Computer Vision and Graphics
Year:
2012

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Abstract

Image Based Lighting technique needs light probe images. Light probe images are measurements of the scene light. Spherical and hemispherical mirrors (light probe measurement devices) and camera are used for the light probe image acquisition. In the paper is proposed and analyzed computational requirement of position and radius estimation of the hemispherical mirror with stripe pattern flange. Proposed solution reduces computation cost and allows processing of 4k image in 3 minutes.