Abstract
The measurement of a bidirectional reflectance distribution function (BRDF) requires a purpose-built instrument. We ease this requirement by presenting a relative method for measuring a BRDF using a multipurpose robotic arm. Our focus is on the alignment of the system to perform accurate camera positioning and orientation. We use a six degrees of freedom robotic arm to move a camera on a hemisphere surrounding a flat material sample. Point-like light sources, fixed on a quarter circle arc, sequentially illuminate the sample from different directions. The resulting images are used to reconstruct the material BRDF. We limit ourselves to tristimulus (RGB) isotropic BRDF acquisition.
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CITATION STYLE
Lyngby, R. A., Matthiassen, J. B., Frisvad, J. R., Dahl, A. B., & Aanæs, H. (2019). Using a Robotic Arm for Measuring BRDFs. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 11482 LNCS, pp. 184–196). Springer Verlag. https://doi.org/10.1007/978-3-030-20205-7_16
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