A new gonioreflectometer has been developed at the National Research Council of Canada to measure spectral bidirectional reflectance distribution functions (BRDF). It incorporates a five-axis robot manipulator and allows the spectral sampling of the BRDF of reflective materials for arbitrary angles of irradiation and detection. One application will be the characterization of calibration and test targets used in 3D multispectral image acquisition systems.
Réjean Baribeau, Éric Côté, William S. Neil, "NRC robot-based gonioreflectometer for spectral BRDF measurement" in Proc. IS&T CGIV 2008/MCS'08 4th European Conf. on Colour in Graphics, Imaging, and Vision 10th Int'l Symp. on Multispectral Colour Science, 2008, pp 457 - 460, https://doi.org/10.2352/CGIV.2008.4.1.art00098