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Volume: 12 | Article ID: art00049
Efficient Representation of Spectral BRDFs
  DOI :  10.2352/CIC.2004.12.1.art00049  Published OnlineJanuary 2004

We propose a hybrid method to efficiently represent spectral BRDFs. We first perform Fourier transform to the spectrum for given incident and outgoing directions, and then decompose the Fourier coefficients into a smooth background and a sharp peak. The smooth background will be represented with a linear combination of spherical harmonics, and the sharp peak with a Gaussian function. The errors of representation are studied. This method has a potential of applications in color synthesis and analysis.

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Huiying Xu, Yinlong Sun, "Efficient Representation of Spectral BRDFsin Proc. IS&T 12th Color and Imaging Conf.,  2004,  pp 276 - 281,

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