TY - JOUR
T1 - Effects of mesoscale surface structure on perceived brightness
AU - Ludwig, Michael
AU - Meyer, Gary
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Surface geometry can play an important role in our ability to understand and interpret material appearance and properties. This property ranges from large-scale shape changes impacting our identification of reflections to visible surface roughness affecting how glossy a material appears. In this work we present a user study that examines numerous surface geometries that are defined at the mesoscale: small enough to be considered indicative of the material and not object geometry, but large enough to be visible from a distance with the naked eye. Subjects matched the perceived brightness of a ray-traced bumpy surface to a flat surface with adjustable intensity. Multiple classes of bumpy surface were generated and presented to subjects so that the effects of surface pattern on perceived brightness could be studied. We show that two predictive models of brightness are only conditionally accurate but that humans have a consistent means of measuring overall brightness.
AB - Surface geometry can play an important role in our ability to understand and interpret material appearance and properties. This property ranges from large-scale shape changes impacting our identification of reflections to visible surface roughness affecting how glossy a material appears. In this work we present a user study that examines numerous surface geometries that are defined at the mesoscale: small enough to be considered indicative of the material and not object geometry, but large enough to be visible from a distance with the naked eye. Subjects matched the perceived brightness of a ray-traced bumpy surface to a flat surface with adjustable intensity. Multiple classes of bumpy surface were generated and presented to subjects so that the effects of surface pattern on perceived brightness could be studied. We show that two predictive models of brightness are only conditionally accurate but that humans have a consistent means of measuring overall brightness.
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U2 - 10.2352/issn.2470-1173.2016.9.mmrma-367
DO - 10.2352/issn.2470-1173.2016.9.mmrma-367
M3 - Conference article
AN - SCOPUS:85084777574
SN - 2470-1173
JO - IS and T International Symposium on Electronic Imaging Science and Technology
JF - IS and T International Symposium on Electronic Imaging Science and Technology
T2 - Measuring, Modeling, and Reproducing Material Appearance 2016
Y2 - 14 February 2016 through 18 February 2016
ER -