The dark side of gloss
The dark side of gloss
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DOI：
10.1038/nn.3221
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发表时间：
2012-11-01
影响因子：
25
通讯作者：
Anderson, Barton L.
中科院分区：
文献类型：
--
作者：
Kim, Juno;Marlow, Phillip J.;Anderson, Barton L.
我们的视觉系统依赖于光与物体相互作用产生的图像结构来推断它们的材料属性。一个被广泛研究的表面特性是光泽度，它可以提供物体光滑、有光泽或潮湿的信息。历史上的研究主要集中在反射高光在调节感知光泽度中的作用。在这里，我们在人类观察者中显示，光泽表面可以产生明亮的反射高光和黑暗的反射“低光”，我们发现，当镜面低光产生的图像结构模糊或与周围表面不对齐时，感知的光泽度会下降阴影和感觉到的光泽度可以由与高光隔离的表面区域中的低光的存在引起。这些结果表明，由镜面高光和低光产生的图像结构被用来构建我们对表面光泽的体验。
Our visual system relies on the image structure generated by the interaction of light with objects to infer their material properties. One widely studied surface property is gloss, which can provide information that an object is smooth, shiny or wet. Studies have historically focused on the role of specular highlights in modulating perceived gloss. Here we show in human observers that glossy surfaces can generate both bright specular highlights and dark specular 'lowlights', and that the presence of either is sufficient to generate compelling percepts of gloss. We show that perceived gloss declines when the image structure generated by specular lowlights is blurred or misaligned with surrounding surface shading and that perceived gloss can arise from the presence of lowlights in surface regions isolated from highlights. These results suggest that the image structure generated by specular highlights and lowlights is used to construct our experience of surface gloss.