Low-Cost Photometric Calibration for Interactive Relighting

Céline Loscos 1 George Drettakis 1, *
* Corresponding author
1 iMAGIS - Models, Algorithms and Geometry for Computer Generated Image Graphics
GRAVIR - IMAG - Graphisme, Vision et Robotique, Inria Grenoble - Rhône-Alpes
Abstract : Computer augmented reality is a rapidly emerging field allowing users to mix virtual and real worlds. Our interest is to allow relighting and remodelling of real scenes, using a reflectance estimation method. Most previous work focused on the quality of the results without considering the expense in computation and the price of acquisition equipment. In this paper, we present a low–cost photometric calibration method which improves the reflectance estimate of real scenes. This is achieved by adapting high-dynamic range image creation to a low-cost camera, and an iterative approach to correct reflectance estimation using a radiosity algorithm for indirect light calculation.
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https://hal.inria.fr/inria-00510060
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Céline Loscos, George Drettakis. Low-Cost Photometric Calibration for Interactive Relighting. Proceedings of the First French-British International Workshop on Virtual Reality, 2000, Brest, France. ⟨inria-00510060⟩

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