Classical and inverted White's effects
Classical and inverted White's effects
复制标题
DOI：
10.1068/p3108
复制
发表时间：
2001-01-01
期刊：
影响因子：
1.7
通讯作者：
Gerbino, W
中科院分区：
文献类型：
--
作者：
Ripamonti, C;Gerbino, W
在经典白色效果中，中间亮度目标在中断光栅的暗条纹时显得较亮，而在中断亮条纹时则显得较暗。当目标的亮度相对于光栅条纹的亮度双倍递增或双倍递减时，效果相反。为了找到经典效应和倒转效应的共同解释，我们进行了两个实验。在实验 1 中，我们利用中间目标显示器来表明，仅当目标亮度接近顶部区域的亮度时，感知透明度才优于遮挡。这一结果削弱了基于透明度的怀特效应解释。在实验2中，我们改变光栅对比度和目标亮度来测量七个中间目标情况下的经典效果，以及四个双增量和四个双减情况下的反转效果。这两种类型的效果都由一个通用模型来解释，该模型基于顶部区域的同化和与中断区域的对比度，并通过沿亮度连续体的相邻性进行加权。
In classical White's effect, intermediate-luminance targets appear lighter when they interrupt the dark stripes of a grating and darker when they interrupt the light stripes. The effect is reversed when targets are of double-increment or double-decrement luminance, relative to the luminances of grating stripes. To find a common explanation for classical and inverted effects, we ran two experiments. In experiment 1, we utilised intermediate-target displays to show that perceived transparency dominates over occlusion only when the target luminance is close to the luminances of top regions. This result weakens transparency-based accounts of White's effect. In experiment 2, we varied grating contrast and target luminance to measure the classical effect in seven intermediate-target cases, as well as the inverted effect in four double-increment and four double-decrement cases, Both types of effect are explained by a common model, based on assimilation to the top region and contrast with the interrupted region, weighted by adjacency along the luminance continuum.