Does Higher Refractive Index Mean Higher Gloss?

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dc.contributor.authorGigilashvili, Daviten_US
dc.contributor.authorDiaz Estrada, David Normanen_US
dc.contributor.editorHaines, Ericen_US
dc.contributor.editorGarces, Elenaen_US
dc.date.accessioned2024-06-25T11:05:42Z
dc.date.available2024-06-25T11:05:42Z
dc.date.issued2024
dc.description.abstractAccording to Fresnel equations, the amount of specular reflection at the dielectric surface depends on two factors: incident angle and the difference in refractive indices of inner and outer media. Therefore, it is often assumed that the higher the refractive index of the material, the glossier it looks. However, gloss perception is a complex process that, in addition to specular reflectance, depends on many other factors, such as object's translucency and shape. In this study, we conducted two psychophysical experiments to quantify the impact of refractive index on perceived gloss for objects with varying degrees of translucency and surface roughness. For some objects a monotonic positive relationship between refractive index and perceived gloss was observed, while for others the relationship was found to be non-monotonic. Afterward, we evaluated how the refractive index affects image cues to gloss and tried to explain psychophysical results by image statistics.en_US
dc.description.sectionheadersAppearance
dc.description.seriesinformationEurographics Symposium on Rendering
dc.identifier.doi10.2312/sr.20241151
dc.identifier.isbn978-3-03868-262-2
dc.identifier.issn1727-3463
dc.identifier.pages11 pages
dc.identifier.urihttps://doi.org/10.2312/sr.20241151
dc.identifier.urihttps://diglib.eg.org/handle/10.2312/sr20241151
dc.publisherThe Eurographics Associationen_US
dc.rightsAttribution 4.0 International License
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCCS Concepts: Computing methodologies -> Perception; Reflectance modeling; Image processing
dc.subjectCCS Concepts
dc.subjectComputing methodologies
dc.subject> Perception
dc.subjectReflectance modeling
dc.subjectImage processing
dc.titleDoes Higher Refractive Index Mean Higher Gloss?en_US
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