Modulation transfer function measurement of a multichannel optical system

被引：13

作者：

de la Barriere, Florence ^{[1
]}

Druart, Guillaume ^{[1
]}

Guerineau, Nicolas ^{[1
]}

Taboury, Jean ^{[2
]}

Primot, Jerome ^{[1
]}

Deschamps, Joel ^{[1
]}

机构：

[1] Off Natl Etud & Rech Aerosp, F-91761 Palaiseau, France

[2] Inst Opt, F-91127 Palaiseau, France

来源：

APPLIED OPTICS | 2010年 / 49卷 / 15期

关键词：

INFRARED IMAGING-SYSTEMS; THIN OBSERVATION MODULE; COMPOUND-EYE; SUPERRESOLUTION RECONSTRUCTION; BOUND OPTICS; TOMBO; CAMERA;

D O I：

10.1364/AO.49.002879

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a new method to measure the modulation transfer function (MTF) beyond the Nyquist frequency of a multichannel imaging system for which all the channels have parallel optical axes. Such a multichannel optical system produces a set of undersampled subimages. If the subimages contain non-redundant information, high spatial frequencies are folded between low spatial frequencies, leading to the possible extraction of frequencies higher than the Nyquist frequency. The measurement of the MTF of the multichannel system leads to the estimation of the resolution enhancement of the final image that can be obtained by applying a postprocessing algorithm to the collection of undersampled subimages. Experimental images are presented to validate this method. (C) 2010 Optical Society of America

引用

页码：2879 / 2890

页数：12

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