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Related Experiment Video

Updated: Jun 5, 2026

A Stable Phantom Material for Optical and Acoustic Imaging

A Stable Phantom Material for Optical and Acoustic Imaging

Published on: June 16, 2023

Recognizing real materials from their glossy appearance.

Guillaume Ged¹, Gaël Obein, Zaccaria Silvestri

¹Propriétés Optiques des Matériaux, Laboratoire Commun de Métrologie LNE-Cnam, La Plaine Saint-Denis, France. guillaume.ged@cnam.fr

Journal of Vision

|December 29, 2010

Summary

This study shows that human observers can identify material properties from visual cues like gloss and haze. The research links physical surface characteristics to how we perceive material appearance.

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Area of Science:

Materials Science
Computer Vision
Human Perception

Background:

The human visual system excels at recognizing materials under diverse conditions.
Identifying materials from appearance is crucial for understanding object properties.
Gloss and haze are key visual attributes that can indicate surface characteristics.

Purpose of the Study:

To investigate how gloss and haze, as appearance attributes, relate to the physical properties of materials.
To determine if observers can infer material surface characteristics from visual cues.
To correlate psychophysical gloss ratings with objective gloss measurements.

Main Methods:

Prepared twelve glass and PMMA samples, varying surface roughness through erosion.
Measured gloss and haze at 60 degrees using a gloss meter.
Derived microfacet distributions from measured Bidirectional Reflectance Distribution Functions (BRDFs) using an inverted microfacet model.
Conducted a visual ranking experiment using the pair comparison method.

Main Results:

Psychophysical gloss ratings showed a strong correlation with the 60-degree gloss index.
Principal component analysis of visual data indicated three significant components influencing perception.
Objective measurements of surface roughness and BRDFs provided physical data on material properties.

Conclusions:

Observers can perceive the physical nature of object surfaces based on appearance attributes.
Features within the BRDF and gloss appearance are sufficient for inferring material properties.
Visual perception of materials is linked to measurable physical surface characteristics.