“Full-spectral image-based lighting with skylight” by Tachi

  • ©Tomohiro Tachi

  • ©Tomohiro Tachi




    Full-spectral image-based lighting with skylight



    Image-Based Lighting introduced by Debevec [1998] was based on tricolor image captured by a digital camera. However, full-spectral data is necessary for precise calculation of reflected color of an object. Tominaga et al. [2003] used sampled spectral power distribution (SPD) for estimating the basis functions of illuminant spectra and restored spectral data of omni-directional light distribution. However, since the method is not based on physical model of the illuminant, measurement of the illuminant SPD is needed for each different scene.


    1. Debevec, P. 1998. Rendering Synthetic Objects Into Real Scenes: Bridging Traditional and Image-Based Graphics With Global Illumination and High Dynamic Range Photography. In Proceedings of ACM SIGGRAPH 98, 189–198.
    2. Tominaga, S. and Tanaka, N. 2003. Spectral Measurement of Omnidirectional Light Distribution and Its Application to Image Rendering. In Proceedings of Eleventh Color Imaging Conference: Color Science, Systems and Applications, 30–35.
    3. Nishita, T., Shirai, T., Tadamura, K., and Nakamae, E. 1993. Display of the Earth Taking into Account Atmospheric Scattering. In Proceedings of SIGGRAPH 93. 175–182.

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