“Accurate image based re-lighting through optimization”

  • ©Pieter Peers and Philip Dutré

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    Application

Title:

    Accurate image based re-lighting through optimization

Session/Category Title:   Lighting


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Abstract:


    Image-based relighting represents a class of techniques that apply new lighting conditions to a scene, given a set of basis images. In this sketch we present a relighting technique that, for a single viewpoint, accurately captures the reflectance field of objects, without restrictions on their geometrical complexity or material properties. Once the reflectance field is captured, the objects can be relit under arbitrary lighting conditions. To achieve such accurate results, our method combines the strengths of both the Light Stage [Debevec et al. 2000] and environment matting [Zongker et al. 1999; Chuang et al. 2000] into a single framework.

References:


    1. Chuang, Y.-Y., Zongker, D. E., Hindorff, J., Curless, B., Salesin, D. H., and Szeliski, R. 2000. Environment matting extensions: Towards higher accuracy and real-time capture. In Siggraph 2000, Computer Graphics Proceedings, K. Akeley, Ed., Annual Conference Series, ACM Siggraph, 121–130.
    2. Debevec, P., Hawkins, T., Tchou, C., Duiker, H.-P., Sarokin, W., and Sagar, M. 2000. Acquiring the reflectance field of a human face. In Siggraph 2000, Computer Graphics Proceedings, K. Akeley, Ed., Annual Conference Series, ACM Siggraph, 145–156.
    3. Zongker, D. E., Werner, D. M., Curless, B., and Salesin., D. H. 1999. Environment matting and compositing. In Sigggraph 1999, Computer Graphics Proceedings, A. Rock-wood, Ed., Annual Conference Series, ACM Siggraph, 205–214.


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