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Multi-camera Radiometric Surface Modelling for Image-Based Re-lighting

  • Oliver Grau
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4174)

Abstract

This contribution describes an automatic method to retrieve the diffuse radiometric surface model of moving persons or other objects along with the object geometry using a multi-camera system. The multi-camera equipped studio allows synchronised capture of the foreground action and a visual hull computation is then used to compute a 3D model of that scene. The diffuse surface reflection parameters are computed using the 3D model from that process together with an illumination map of the studio. The illumination map is a high dynamic range image generated from a series of images of the studio using a camera equipped with a spherical (fish-eye) lens. With this setup our method is able to capture any action in the studio under normal lighting.

Keywords

Foreground Object Visual Hull Global Illumination High Dynamic Range Image Optical Transfer Function 
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 2006

Authors and Affiliations

  • Oliver Grau
    • 1
  1. 1.BBC ResearchKingswood Warren, TadworthUK

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