Some consequences of stereoscopic depth constancy
Some consequences of stereoscopic depth constancy
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立体深度恒定性的一些后果
DOI：
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发表时间：
1979
期刊：
影响因子：
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通讯作者：
L. Cardillo
中科院分区：
文献类型：
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作者：
H. Wallach;B. Gillam;L. Cardillo
视网膜视差与相应的客观深度间隔距眼睛的距离的平方成比例地减小。在 2 m 的距离内，立体深度感知可以很好地补偿观察距离视差的减小；对于给定的视差，体验深度大约与观察距离的平方成正比。当通过立体图、向量图或眼镜人为产生视差时，视差仅与观察距离的一次方成比例减小。当普尔弗里希效应产生等价差异时，情况也是如此。然而，深度感知可以补偿正常的视差损失。因此，感知深度的净增益应该大约与观察距离的一次方成正比。当测量由一只眼睛的水平放大或普尔弗里希效应引起的感知深度时，发现它与观察距离大致成比例地增加。
Retinal disparity decreases in proportion to the square of the distance of the corresponding objective depth interval from the eyes. Up to a distance of 2 m, stereoscopic depth perception compensates well for this decrease in disparity with observation distance; for a given disparity, experienced depth increases approximately in proportion to the square of the observation distance. When disparities are artificially produced, by anaglyphs or vectograms, or by spectacles, they decrease only in proportion to the first power of the observation distance. The same is true when the Pulfrich effect gives rise to equivalents of disparity. Depth perception, however, compensates for the normal disparity loss. As a result, there should be a net gain in perceived depth approximately in proportion to the first power of observation distance. When perceived depth caused by horizontal magnification in one eye or by the Pulfrich effect was measured, it was found to increase approximately in proportion to observation distance.