APPARENT SURFACE CURVATURE AFFECTS LIGHTNESS PERCEPTION
APPARENT SURFACE CURVATURE AFFECTS LIGHTNESS PERCEPTION
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DOI：
10.1038/351228a0
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发表时间：
1991-05-16
期刊：
影响因子：
64.8
通讯作者：
KERSTEN, D
中科院分区：
文献类型：
--
作者：
KNILL, DC;KERSTEN, D
人类视觉系统具有精确感知表面的亮度或相对反射率的显著能力，即使图像亮度的大部分变化可能是由其他场景属性引起的，例如形状和照明。大多数亮度感知的生理模型1、2模型和计算模型3-6调用了独立于或早于对其他场景属性的估计的早期感觉机制。与这些模型中假设的亮度感知的模块化形成对比的是，实验表明，平面表面属性(如方向、深度和透明度7-10)的“高阶”感知可以影响感知的亮度。在这里，我们展示了感知的曲面曲率也会影响感知的亮度。早期实验的结果表明，将亮度边缘视为表面属性而不是反射率的变化会影响亮度。这些结果表明，对亮度平滑变化的解释也会影响亮度感知。
THE human visual system has the remarkable capacity to perceive accurately the lightness, or relative reflectance, of surfaces, even though much of the variation in image luminance may be caused by other scene attributes, such as shape and illumination. Most physiological 1,2, and computational models 3-6 of lightness perception invoke early sensory mechanisms that act independently of, or before, the estimation of other scene attributes. In contrast to the modularity of lightness perception assumed in these models are experiments that show that supposedly 'higher-order' percepts of planar surface attributes, such as orientation, depth and transparency 7-10, can influence perceived lightness. Here we show that perceived surface curvature can also affect perceived lightness. The results of the earlier experiments indicate that perceiving luminance edges as changes in surface attributes other than reflectance can influence lightness. These results suggest that the interpretation of smooth variations in luminance can also affect lightness percepts.