A model for speckle noise in phase data from digital holographic measurements

被引：0

作者：

Meteyer, Erwan ^{[1
]}

Picart, Pascal ^{[1
]}

Pezerat, Charles ^{[1
]}

机构：

[1] Le Mans Univ, CNRS, Grad Sch IA GS, Lab Acoust Univ Mans LAUM,UMR 6613,Inst Acoust, Ave Olivier Messiaen, F-72085 Le Mans, France

来源：

OPTICS AND PHOTONICS FOR ADVANCED DIMENSIONAL METROLOGY II | 2022年 / 12137卷

关键词：

digital holography; holographic interferometry; speckle decorrelation; noise in imaging systems;

D O I：

10.1117/12.2624156

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper discusses on the analytical modeling of the speckle decorrelation noise in digital Fresnel holographic interferometry. The complex coherence factor between two images from two digitally reconstructed holograms at two different instants is analyzed. The modulus of the coherence factor is established and depends on the local surface deformation. The main influencing parameters of the holographic set-up are discussed. Experiments confirm the validity of the proposed modelling.

引用

页数：6

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