Print Email Facebook Twitter MatMix 1.0 Title MatMix 1.0: Using optical mixing to probe visual material perception Author Zhang, F. (TU Delft Human Information Communication Design) de Ridder, H. (TU Delft Human Information Communication Design) Fleming, Ronald W. (Justus Liebig University Giessen) Pont, S.C. (TU Delft Human Information Communication Design) Date 2016 Abstract MatMix 1.0 is a novel material probe we developed for quantitatively measuring visual perception of materials. We implemented optical mixing of four canonical scattering modes, represented by photographs, as the basis of the probe. In order to account for a wide range of materials, velvety and glittery (asperity and mesofacet scattering) were included besides the common matte and glossy modes (diffuse and forward scattering). To test the probe, we conducted matching experiments in which inexperienced observers were instructed to adjust the modes of the probe to match its material to that of a test stimulus. Observers were well able to handle the probe and match the perceived materials. Results were robust across individuals, across combinations of materials, and across lighting conditions. We conclude that the approach via canonical scattering modes and optical mixing works well, although the image basis of our probe still needs to be optimized. We argue that the approach is intuitive, since it combines key image characteristics in a ''painterly'' approach. We discuss these characteristics and how we will optimize their representations. Subject BRDFMat-Mix 1.0Material perceptionMaterial probeReflectance To reference this document use: http://resolver.tudelft.nl/uuid:76c76a81-8684-46ae-9bf1-12d68ecf3792 DOI https://doi.org/10.1167/16.6.11 ISSN 1534-7362 Source Journal of vision, 16 (6), 1-18 Part of collection Institutional Repository Document type journal article Rights © 2016 F. Zhang, H. de Ridder, Ronald W. Fleming, S.C. Pont Files PDF i1534_7362_16_6_11.pdf 1.4 MB Close viewer /islandora/object/uuid%3A76c76a81-8684-46ae-9bf1-12d68ecf3792/datastream/OBJ/view