Vincent Masselus
Philip Dutré
ABSTRACT
The Free-form Light Stage captures the reflectance field of an object using a freely movable, hand-held light source. By photographing the object under different illumination conditions, we are able to render the object under any lighting condition, using a linear combination of basis images. Our technique builds on recent techniques, such as the Light Stage [Debevec et al. 2000], where light sources are placed at fixed and known positions (e.g. using a gantry). We remove this limitation, and put no restrictions on light source placement.
- Debevec, P., Hawkins, T., Tchou, C., Duiker, H.-P., Sarokin, W., and Sagar, M. 2000. Acquiring the reflectance field of a human face. In Proceedings of SIGGRAPH 2000, K. Akeley, Ed., Computer Graphics Proceedings, Annual Conference Series, ACM Siggraph, 145--156. Google Scholar
Digital Library
- Lee, C. H., and Rosenfeld, A. 1985. Improved methods of estimating shape from shading using the light source coordinate system. Artificial Intelligence 26, 125--143. Google ScholarDigital Library
- The free-form light stage
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