Wavefront-coding technique for inexpensive and robust retinal imaging

被引：17

作者：

Arines, Justo ^{[1
]}

Hernandez, Rene O. ^{[2
]}

Sinzinger, Stefan ^{[3
]}

Grewe, A. ^{[3
]}

Acosta, Eva ^{[2
]}

机构：

[1] Univ Santiago de Compostela, Fac Opt & Optometry, Area Optometry, Dept Appl Phys, Santiago De Compostela 15782, Spain

[2] Univ Santiago de Compostela, Fac Phys, Dept Appl Phys, Area Opt, Santiago De Compostela 15782, Spain

[3] Tech Univ Ilmenau, Dept Engn Opt, D-98684 Ilmenau, Germany

来源：

OPTICS LETTERS | 2014年 / 39卷 / 13期

关键词：

HUMAN EYE; DECONVOLUTION;

D O I：

10.1364/OL.39.003986

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a hybrid optical-digital imaging system that can provide high-resolution retinal images without wavefront sensing or correction of the spatial and dynamic variations of eye aberrations. A methodology based on wavefront coding is implemented in a fundus camera in order to obtain a high-quality image of retinal detail. Wavefront-coded systems rely simply on the use of a cubic-phase plate in the pupil of the optical system. The phase element is intended to blur images in such a way that invariance to optical aberrations is achieved. The blur is then removed by image postprocessing. Thus, the system can provide high-resolution retinal images, avoiding all the optics needed to sense and correct ocular aberration, i.e., wavefront sensors and deformable mirrors. (C) 2014 Optical Society of America

引用

页码：3986 / 3988

页数：3

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