The perceptual basis of common photographic practice.

The perceptual basis of common photographic practice.
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DOI:
10.1167/12.5.8
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发表时间:
2012-05-25
期刊:
影响因子:
1.8
通讯作者:
Banks MS
Banks MS
中科院分区:
医学4区
文献类型:
--
作者:
Cooper EA;Piazza EA;Banks MS

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摄影师,电影摄影师和计算机图形工程师使用某些技术来创建惊人的图片效果。通过使用不同焦距的镜头,它们可以使场景看起来在深度上压缩或扩展,使熟悉的物体看起来自然或扭曲,或者使人看起来更聪明,更有吸引力或更神经质。我们问为什么用一定焦距拍摄的照片看起来很自然,而用其他焦距拍摄的照片看起来很扭曲。我们发现,人们在观看图片时喜欢的观看距离导致他们从太近的地方观看长焦距的图片,而从太远的地方观看短焦距的图片。感知失真的发生是因为人们没有考虑到他们不正确的观看距离。通过遵循使用50毫米透镜的经验法则,摄影师大大增加了观众从正确距离观看照片的几率,在正确距离处,照片不会失真。我们的理论为创造比传统指导方针更有效的图像效果提供了新的指导方针。
Photographers, cinematographers, and computer-graphics engineers use certain techniques to create striking pictorial effects. By using lenses of different focal lengths, they can make a scene look compressed or expanded in depth, make a familiar object look natural or distorted, or make a person look smarter, more attractive, or more neurotic. We asked why pictures taken with a certain focal length look natural, while those taken with other focal lengths look distorted. We found that people’s preferred viewing distance when looking at pictures leads them to view long-focal-length pictures from too near and short-focal-length pictures from too far. Perceptual distortions occur because people do not take their incorrect viewing distances into account. By following the rule of thumb of using a 50-mm lens, photographers greatly increase the odds of a viewer looking at a photograph from the correct distance, where the percept will be undistorted. Our theory leads to new guidelines for creating pictorial effects that are more effective than conventional guidelines.
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发表时间: 1989-05-01
期刊: PERCEPTION & PSYCHOPHYSICS
影响因子: --
作者:
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通讯作者: GREEN, JS
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