Lightdrum—Portable Light Stage for Accurate BTF Measurement on Site
AbstractWe propose a miniaturised light stage for measuring the bidirectional reflectance distribution function (BRDF) and the bidirectional texture function (BTF) of surfaces on site in real world application scenarios. The main principle of our lightweight BTF acquisition gantry is a compact hemispherical skeleton with cameras along the meridian and with light emitting diode (LED) modules shining light onto a sample surface. The proposed device is portable and achieves a high speed of measurement while maintaining high degree of accuracy. While the positions of the LEDs are fixed on the hemisphere, the cameras allow us to cover the range of the zenith angle from 0
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Description: Videos and data for Lightdrum project
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Havran, V.; Hošek, J.; Němcová, Š.; Čáp, J.; Bittner, J. Lightdrum—Portable Light Stage for Accurate BTF Measurement on Site. Sensors 2017, 17, 423.
Havran V, Hošek J, Němcová Š, Čáp J, Bittner J. Lightdrum—Portable Light Stage for Accurate BTF Measurement on Site. Sensors. 2017; 17(3):423.Chicago/Turabian Style
Havran, Vlastimil; Hošek, Jan; Němcová, Šárka; Čáp, Jiří; Bittner, Jiří. 2017. "Lightdrum—Portable Light Stage for Accurate BTF Measurement on Site." Sensors 17, no. 3: 423.
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