Heuristic analysis of von Kries color constancy.

Heuristic analysis of von Kries color constancy.
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von Kries 颜色恒常性的启发式分析。

DOI:
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发表时间:
1986
期刊:
Journal of the Optical Society of America. A, Optics and image science
影响因子:
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通讯作者:
M. H. Brill
M. H. Brill
中科院分区:
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文献类型:
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作者:
J. A. Worthey;M. H. Brill

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在一系列简化的例子的基础上,冯克里斯的比例规则的恒定模型的属性进行检查。结果发现,受体敏感功能的广度导致同色异谱,阻碍颜色恒常性。这些功能的重叠限制了冯·克里斯适应的准确性,原因更微妙:它导致非零的非对角元素的转换矩阵中的对象反射率受体刺激。这种非对角线元素使得冯·克里斯自适应成为不精确的颜色恒定方案,即使在限制发光体以防止同色异谱时也是如此。
The properties of constancy models based on the proportionality rule of von Kries are examined in a series of simplified examples. It is found that the breadth of receptor-sensitivity functions causes metamerism, thwarting color constancy. Overlap of these functions limits the accuracy of von Kries adaptation for a more subtle reason: it causes nonzero off-diagonal elements in the transformation matrix relating object reflectance to receptor stimulations. Such off-diagonal elements make von Kries adaptation an inexact color-constancy scheme, even when the illuminant is restricted to prevent metamerism.