去相关对使用静态和动态随机点立体图进行三维光栅检测的影响。
Effect of decorrelation on 3-D grating detection with static and dynamic random-dot stereograms.
作者信息
Palmisano Stephen, Allison Robert S, Howard Ian P
机构信息
Department of Psychology, University of Wollongong, NSW 2522, Australia.
出版信息
Vision Res. 2006 Jan;46(1-2):57-71. doi: 10.1016/j.visres.2005.10.005. Epub 2005 Nov 22.
Three experiments examined the effects of image decorrelation on the stereoscopic detection of sinusoidal depth gratings in static and dynamic random-dot stereograms (RDS). Detection was found to tolerate greater levels of image decorrelation as: (i) density increased from 23 to 676 dots/deg2; (ii) spatial frequency decreased from 0.88 to 0.22 cpd; (iii) amplitude increased above 0.5 arcmin; and (iv) dot lifetime decreased from 1.6s (static RDS) to 80 ms (dynamic RDS). In each case, the specific pattern of tolerance to decorrelation could be explained by its consequences for image sampling, filtering, and the influence of depth noise.
三项实验研究了图像去相关对静态和动态随机点立体图（RDS）中正弦深度光栅立体检测的影响。研究发现，在以下情况下，检测能够容忍更高水平的图像去相关：（i）密度从23点/度²增加到676点/度²；（ii）空间频率从0.88周/度降低到0.22周/度；（iii）幅度增加到0.5角分以上；（iv）点寿命从1.6秒（静态RDS）降低到80毫秒（动态RDS）。在每种情况下，对去相关的特定容忍模式都可以通过其对图像采样、滤波以及深度噪声影响的结果来解释。
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