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Spectral Volume Rendering based on the Kubelka‐Munk Theory
Author(s) -
AbdulRahman Alfie,
Chen Min
Publication year - 2005
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/j.1467-8659.2005.00866.x
Subject(s) - chen , rendering (computer graphics) , library science , computer science , citation , information retrieval , computer graphics (images) , paleontology , biology
Colour realism plays an important role in computer graphics and visualization. In this paper, we present a new approach to direct volume rendering based on the Kubelka-Munk theory of diffuse reectance . We show that not only the Kubelka-Munk theory facilitates a correct spectral volume rendering integral suitable for both solid objects and amorphous matters in volume datasets, but also provides volume visualization with more accurate optical effects than the traditional volume rendering integral based on the RGBα accumulation. We discuss the design of transfer functions for specifying absorption and scattering coefcients, and the use of post-illumination for integrating pre-processed reectance images in real time. We demonstrate the optical realism achieved by this approach with a combination of several natural and articial colour datasets.