对中央凹感受器孔径进行平均处理可减少混叠现象。

Averaging over the foveal receptor aperture curtails aliasing.

作者信息

Miller W H, Bernard G D

出版信息

Vision Res. 1983;23(12):1365-9. doi: 10.1016/0042-6989(83)90147-5.

Abstract

We show that the entrance aperture of the foveal cone is about 80% of the 3 micron center-to-center spacing. Reduction in contrast caused by averaging of illumination over this aperture prompts us to predict detection with aliasing between the Nyquist limit of 60 c/deg (where contrast reduction is 63%) and 150 c/deg (where contrast is zero) when the eye's optics are bypassed by impressing interference fringes directly on the fovea.

摘要

我们发现，中央凹视锥细胞的入射孔径约为3微米中心距的80%。由于该孔径上光照平均导致的对比度降低，促使我们预测，当通过直接在中央凹上施加干涉条纹来绕过眼睛的光学系统时，在60周/度（对比度降低63%）至150周/度（对比度为零）的奈奎斯特极限之间会出现混叠检测。