Visual observation is our principal source of information in determining the nature of objects,
including shape, material or roughness. The physiological and cognitive processes that …

Efficient, realistic rendering of complex scenes is one of the grand challenges in computer
graphics. Perceptually based rendering addresses this challenge by taking advantage of the …

The objective of this study was to evaluate the effect of natural bleaching products on the
color, whiteness, and superficial properties of dental enamel. Seventy fragments of bovine …

Vision is difficult because images are ambiguous about the structure of the world. For object
color, the ambiguity arises because the same object reflects a different spectrum to the eye …

Abstract S. Nishida and M. Shinya (1998) found that observers have only a limited ability to
recover surface-reflectance properties under changes in surface shape. Our aim in the …

Two experiments explore the color perception of objects in complex scenes. The first
experiment examines the color perception of objects across variation in surface gloss …

Purpose The current gold standard measure to assess polishing efficacy is surface
roughness (SR) assessed in laboratory research. Specular gloss (SG) has been negatively …

Objective: To assess the visual perception of observers regarding perceptibility and
acceptability of surface gloss variations of resin composites and to determine the limit of …

This study evaluated the effect of phytosphingosine (PHS) and bioactive glass-ceramic
(Biosilicate) on dental enamel in terms of color alteration (ΔE), microhardness, and surface …

Visual observation is one of the primary means to interact with the world around us.
However, the interplay of geometry, material, and illumination in the perception of objects is …