DISTANCE PERCEPTION AS A FUNCTION OF PHOTOGRAPHIC AREA OF VIEW
DISTANCE PERCEPTION AS A FUNCTION OF PHOTOGRAPHIC AREA OF VIEW
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DOI：
10.3758/bf03210720
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发表时间：
1989-05-01
期刊：
影响因子：
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通讯作者：
GREEN, JS
中科院分区：
文献类型：
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作者：
KRAFT, RN;GREEN, JS
将所描绘物体的距离感知作为摄影视野的函数进行检查。受试者观看自然户外场景的幻灯片，并直接估计到指定物体的距离。通过使用五种不同焦距的镜头拍摄每个场景来控制视野范围：135、80、48、28 和 17 毫米。通过改变摄影视野，系统地改变了沿着图像深度平面的距离感知：相机镜头的焦距越短，视野越宽，感知的距离就越大。每个受试者距离判断的线性函数显示出非常高的拟合度。 γ截距和斜率都随着焦距的减小而增大。不断增加的伽马截距表明，随着焦距的减小，观看者将自己置于距离所描绘的场景更远的位置，从而补偿了前进的近端边缘。增加的斜率表明整个图像深度平面的距离信息似乎随着焦距的变化而变化。受试者还对前景截断进行了直接判断，结果表明，前景截断随着焦距的减小而减少，但这种减小并不能解释距离感知的显着扩展。
Distance perception of depicted objected was examined as a function of photographic area of view. Subjects viewed slides of natural outdoor scenes and directly estimated the distances to specified objects. Area of view manipulated by means of photographing each scene with lenses of five different focal lengths: 135, 80, 48, 28, and 17 mm. Distance perception along the pictoral depth plane was systematically transformed through changing the photographic area of view: the shorter the focal length of the camera lens, the wider the area of view, and the greater the perceived distance. Linear functions for each subject''s distance judgments revealed a very high goodness of fit. Both the .gamma.-intercepts and the slopes increased as focal length decreased. The increasing .gamma.-intercepts suggest that viewers place themselves farther away from the depicted scene as focal length decreases, compensating for the advancing proximal edge. The increasing slopes suggest that distance information throughout the pictorial depth plane appears to change with focal length. The subjects also male direct judgment of foreground trunction, revealing that foreground truncation decreased as focal length decreased, but that this decrease did not account for the considerable expansion in distance perception.