Perceived depth inversion of smoothly curved surfaces due to image orientation
Perceived depth inversion of smoothly curved surfaces due to image orientation
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由于图像方向而导致的平滑曲面的感知深度反演
DOI：
10.1037/0096-1523.16.3.653
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
J. Todd
中科院分区：
文献类型：
--
作者：
Francene D. Reichel;J. Todd
使用相对深度判断任务来区分由于图像方向引起的深度感知反转和自发反转，例如用Necker立方体观察到的反转。结果表明，由于图像方向的反转效应可能发生在几种不同类型的图像表示中，其中许多效应与涉及头顶照明感知偏差的传统解释不相容。当通过将光源放置在观察点来消除这种偏差时，图像方向的影响与头顶照明一样大。类似的结果也获得了与纹理或运动描绘的表面，其中所有相关的阴影信息被消除。这些结果可以通过对向后倾斜表面的感知偏差来解释，但额外的证据表明，这种偏差可以通过平滑遮挡轮廓的存在而减弱。
A relative depth judgement task was used to distinguish perceived reversals in depth due to image orientation from spontaneous reversals such as those observed with a Necker cube. Results demonstrate that inversion effects due to image orientation can occur for several different types of pictorial representation and that many of these effects are incompatible with traditional explanations involving a perceptual bias for overhead illumination. When this bias was neutralized by placing the light source at the point of observation, the effects of image orientation were just as large as with overhead illumination. Similar results were also obtained for surfaces depicted with texture or motion in which all relevant shading information was eliminated. These results can be explained by a perceptual bias for backward slanting surfaces, but additional evidence suggests that this bias can be attenuated by the presence of smooth occlusion contours.