Virtual gonio-spectrophotometer for validation of BRDF designs

• Authors: Andrej Mihálik , Roman Ďurikovič
• Languages of publication: EN

Abstracts

EN

Measurement of the appearance of an object consists of a group of measurements to characterize the color and surface finish of the object. This group of measurements involves the spectral energy distribution of propagated light measured in terms of reflectance and transmittance, and the spatial energy distribution of that light measured in terms of the bidirectional reflectance distribution function (BRDF). In this article we present the virtual gonio-spectrophotometer, a device that measures flux (power) as a function of illumination and observation. Virtual gonio-spectrophotometer measurements allow the determination of the scattering profile of specimens that can be used to verify the physical characteristics of the computer model used to simulate the scattering profile. Among the characteristics that we verify is the energy conservation of the computer model. A virtual gonio-spectrophotometer is utilized to find the correspondence between industrial measurements obtained from gloss meters and the parameters of a computer reflectance model.

Keywords

EN

appearance measurements; gloss; BRDF

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2011
• Volume: 9
• Issue: 5
• Pages: 1334-1343

Dates

published

1 - 10 - 2011

online

15 - 9 - 2011

Contributors

author

Andrej Mihálik

• Faculty of Mathematics, Physics and Informatics, Mlynská dolina, 842 48, Bratislava, Slovakia

author

Roman Ďurikovič

• Faculty of Mathematics, Physics and Informatics, Mlynská dolina, 842 48, Bratislava, Slovakia

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Identifiers

DOI

10.2478/s11534-011-0049-9