The combined influence of binocular disparity and shading on pictorial shape

被引：17

作者：

Doorschot, PCA ^{[1
]}

Kappers, AML ^{[1
]}

Koenderink, JJ ^{[1
]}

机构：

[1] Univ Utrecht, Helmholtz Inst, NL-3584 CC Utrecht, Netherlands

来源：

PERCEPTION & PSYCHOPHYSICS | 2001年 / 63卷 / 06期

关键词：

D O I：

10.3758/BF03194522

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

The combined influence of binocular disparity and shading on pictorial shape was studied. Stimuli were several pairs of stereo photographs of real objects. The stereo base was 0, 7, or 14 cm, and the location of the light source was varied over three positions (one from about the viewpoint of the camera, one about perpendicular to the line of sight, and one in between the two). Therefore, in total, nine different combinations were studied. Subjects had to perform surface attitude settings at about 300 positions in the image plane. From the settings, depth maps were calculated on which a principal components analysis was performed. It was found that three components were enough to account for at least 97.8% of the variance in the data. The first component accounted for shape constancy. The effects of the two cues could be isolated as a linear combination of the other two components. The effects of the disparity and the shading cue variation were found to combine in almost linear fashion.

引用

页码：1038 / 1047

页数：10

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