Speckle Reduction of Reconstructions of Digital Holograms Using Gamma-Correction and Filtering

被引：13

作者：

Huang, Xiaohui ^{[1
]}

Jia, Zhenhong ^{[1
]}

Zhou, Junlin ^{[1
]}

Yang, Jie ^{[2
]}

Kasabov, Nikola ^{[3
]}

机构：

[1] Xinjiang Univ, Coll Informat Sci & Engn, Urumqi 830046, Peoples R China

[2] Shanghai Jiao Tong Univ, Inst Image Proc & Pattern Recognit, Shanghai 200400, Peoples R China

[3] Auckland Univ Technol, Knowledge Engn & Discovery Res Inst, Auckland 1020, New Zealand

来源：

IEEE ACCESS | 2018年 / 6卷

基金：

美国国家科学基金会;

关键词：

Holography; image enhancement; filtering; noise; NONLOCAL MEANS; RADAR IMAGES; SHOT-NOISE; STATISTICS; MICROSCOPY; TRANSFORM; QUALITY;

D O I：

10.1109/ACCESS.2017.2751540

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Speckle noise is inevitable in the process of acquiring of digital holograms. In this paper, a new approach is proposed to suppress the speckle noise in the digital hologram. The method is composed of two steps: 1) to enhance the noisy digital holograms by Gamma correction, and 2) to process the reconstructed images by filtering. It is demonstrated that the presented method can effectively reduce speckle noise in the digital hologram.

引用

页码：5227 / 5235

页数：9

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