Reduction of speckle noise in holographic images using spatial jittering in numerical reconstructions

被引：32
作者：
Haouat, Mohamed [1 ,2 ]
Garcia-Sucerquia, Jorge [2 ,3 ]
Kellou, Abdelhamid [1 ]
Picart, Pascal [2 ,4 ]
机构：
[1] USTHB, Fac Phys, Lab Elect Quant, BP 32 El Alia, Bab Ezzouar 16111, Alger, Algeria
[2] Univ Maine, CNRS, UMR 6613, LAUM, Ave Olivier Messiaen, F-72085 Le Mans 9, France
[3] Univ Nacl Colombia Medellin, Sch Phys, Medellin 3840, Colombia
[4] Ecole Natl Super Ingenieurs, Rue Aristote, F-72085 Le Mans 9, France
来源：
OPTICS LETTERS | 2017年 / 42卷 / 06期
关键词：
DIGITAL HOLOGRAPHY; MULTIPLE HOLOGRAMS; IMPROVEMENT; MICROSCOPY; RESOLUTION;
D O I：
10.1364/OL.42.001047
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This Letter presents an easy, fast, and efficient single-shot method to reduce speckle noise in digital Fresnel holography. In this method, several images from a single hologram are reconstructed by introducing spatial displacements in the Fresnel kernel. Spatial jitters produce images with different speckle positions. Averaging the set of numerically produced images leads to a strong reduction of speckle noise in both amplitude and phase difference images. The experimental results show the suitability of the proposed approach and confirm its applicability to digital holographic interferometry. (C) 2017 Optical Society of America
引用
收藏
页码：1047 / 1050
页数：4
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