关于图片遮挡的说明。
A note on the masking of pictures.
作者信息
Forster P M
出版信息
Perception. 1982;11(3):319-24. doi: 10.1068/p110319.
An experiment is described in which photographs of everyday objects were masked by frequency-filtered random visual noise. The masking functions obtained were of the same type as those obtained by masking letters and words with random noise or a pattern mask. That is, the high-frequency mask produced a type A function while the low-frequency mask produced a type B function. This result is discussed in terms of the general applicability of models of visual information processing constructed on the basis of experiments with letter or word stimuli. It is suggested that spatial-frequency concepts may usefully be employed to describe the relevant features of different types of mask.
本文描述了一项实验，其中日常物体的照片被经过频率滤波的随机视觉噪声所掩盖。所获得的掩蔽函数与用随机噪声或图案掩蔽字母和单词所获得的掩蔽函数类型相同。也就是说，高频掩蔽产生A型函数，而低频掩蔽产生B型函数。根据基于字母或单词刺激实验构建的视觉信息处理模型的一般适用性来讨论这一结果。有人提出，空间频率概念可能有助于描述不同类型掩蔽的相关特征。
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