The effect of detector sampling in wavefront-coded imaging systems

被引：12

作者：

Muyo, G. ^{[1
]}

Harvey, A. R. ^{[1
]}

机构：

[1] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2009年 / 11卷 / 05期

关键词：

wavefront coding; detector sampling; aliasing; digital image processing;

D O I：

10.1088/1464-4258/11/5/054002

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a comprehensive study of the effect of detector sampling on wavefront-coded systems. Two important results are obtained: the spurious response ratios are reduced in wavefront-coded systems with a cubic phase mask and detector sampling does not compromise the restoration of wavefront-coded images with extended depth of field. Rigorous computer simulation of sampled wavefront-coded images shows an increased signal-to-aliased-noise ratio of up to 16% for a cubic phase mask with alpha = 5 lambda.

引用

页数：9

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