SURFACE PERCEPTION IN PICTURES
SURFACE PERCEPTION IN PICTURES
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DOI：
10.3758/bf03206710
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发表时间：
1992-11-01
期刊：
影响因子：
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通讯作者：
KAPPERS, AML
中科院分区：
文献类型：
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作者：
KOENDERINK, JJ;VANDOORN, AJ;KAPPERS, AML
受试者调整了当地的计量数字，如感知“适合”照片中描绘的物体的表观表面。我们每次会话获得几百个数据点，根据统一的网格覆盖图片。3名受试者各重复设置3次。几乎所有的变异性都存在于斜面中;斜面中的相对扩散约为25%（韦伯分数）。倾斜再现了一个典型的约10度的蔓延。不同观察者的倾斜度等级相关性高，因此不同受试者的倾斜度呈单调相关。变异性可以从个体观察者在重复设置中的分散来预测。尽管单个观察者的重复设置在5%以内达成一致，但观察者对倾斜值的看法并不一致，甚至在平均值上也是如此。在不同的主题之间遇到的深度尺寸加倍的比例因子。这些数据很好地符合一些假设的基准全球表面，其方向是由受试者的本地设置“探测”。变异性完全由单观察者散点解释。这些结论是基于对当地环境内部结构的分析。我们没有解决真实性的问题，也就是说，与某种“真实的对象”相一致。"
Subjects adjusted a local gauge figure such as to perceptually "fit" the apparent surfaces of objects depicted in photographs. We obtained a few hundred data points per session, covering the picture according to a uniform lattice. Settings were repeated 3 times for each of 3 subjects. Almost all of the variability resided in the slant; the relative spread in the slant was about 25% (Weber fraction). The tilt was reproduced with a typical spread of about 10-degrees. The rank correlation of the slant settings of different observers was high, thus the slant settings of different subjects were monotonically related. The variability could be predicted from the scatter in repeated settings by the individual observers. Although repeated settings by a single observer agreed within 5%, observers did not agree on the value of the slant, even on the average. Scaling factors of a doubling in the depth dimension were encountered between different subjects. The data conformed quite well to some hypothetical fiducial global surface, the orientation of which was "probed" by the subject's local settings. The variability was completely accounted for by single-observer scatter. These conclusions are based upon an analysis of the internal structure of the local settings. We did not address the problem of veridicality, that is, conformity to some "real object."