Oversampling requirements for pixelated-imager systems

被引：30
作者：
Hadar, O
Boreman, GD
机构：
[1] Ben Gurion Univ Negev, Dept Elect & Comp Engn, IL-84105 Beer Sheva, Israel
[2] Univ Cent Florida, Creol, Orlando, FL 32816 USA
来源：
OPTICAL ENGINEERING | 1999年 / 38卷 / 05期
关键词：
image quality; modulation transfer functions; oversampling;
D O I：
10.1117/1.602044
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The image quality resulting from a 2-D image-sampling process by an array of pixels is described. The description is based on a Fourier transformation of the Wigner-Seitz cell, which transforms a unit cell of the sampling lattice in the spatial domain into a bandwidth cell in the spatial-frequency domain. The area of the resulting bandwidth cell is a quantitative measure of the image fidelity of the sampling process. We compare the image-quality benefits of three different oversampling geometries in terms of the modulation transfer function (MTF) as a function of the amount of oversampling used. (C) 1999 Society of Photo-Optical Instrumentation Engineers. [S0091-3286(99)00205-6].
引用
收藏
页码：782 / 785
页数：4
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