Efficient Radiosity Methods for Non-Separable Reflectance Models

Neumann, Lázló; Neumann, Attila

doi:10.1007/978-3-662-09287-3_6

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F Transfer Equation1

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2003

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Cited by 2 publications

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“…However, it represents the reflected energy as a function rather than as single value. Reflected energy functions have been studied in [31] and [34]. In our implementation, the solution is obtained by considering discrete values of the functions and .…”

Section: F Transfer Equationmentioning

confidence: 99%

A radiance model for predicting radio wave propagation in irregular dense urban areas

Montiel

Aguado

Sillion

2003

IEEE Trans. Antennas Propagat.

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We present a deterministic model of radio wave propagation based on radiance transfers. Our model uses radiosity techniques to determine facet-to-facet specular reflections according to a three-dimensional building description. The model contains two main components. First, visibility between elements is determined and used to establish links that represent radiance transfers that include diffraction and free space losses based on geometric approximations. Second, links are used to define a transfer equation whose solution provides the transfer intereflections. The solution is obtained by using hierarchical techniques. The results of the model show good agreement with measurements made in urban areas.

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Section: F Transfer Equationmentioning

confidence: 99%