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Brightness Perception of Surfaces with Mesoscale Structures

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Abstract

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 gloss perception. In this work, the authors 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. Models of perceived brightness were compared against sparsely collected brightness judgments from the study and used to densely compare many generated mesoscale surface patterns. Averaging incoming luminance over a spatially varying surface proved effective at modeling brightness judgments. The effects of the mesoscale structure on perceived brightness were not directly correlated to parameters such as shape, size, or depth of the bumpy texture elements.
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Document Type: Research Article

Publication date: 01 March 2017

This article was made available online on 06 December 2016 as a Fast Track article with title: "Brightness Perception of Surfaces with Mesoscale Structures".

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  • The Journal of Imaging Science and Technology (JIST) is dedicated to the advancement of imaging science knowledge, the practical applications of such knowledge, and how imaging science relates to other fields of study. The pages of this journal are open to reports of new theoretical or experimental results, and to comprehensive reviews. Only original manuscripts that have not been previously published, nor currently submitted for publication elsewhere, should be submitted.

    IS&T's JIST-first publication option allows authors wishing to present their work at conferences, but have a journal citation for their paper, to submit a paper to JIST that follows the same rigorous peer-review vetting and publication process as traditional JIST articles, but with the benefit of a condensed time-to-publication time frame and guaranteed conference presentation slot.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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