Optimization of Phase Noise in Digital Holographic Microscopy

被引：0
作者：
Zeng, Yanan [1 ]
Liu, Yuan [1 ]
Yang, Fan [1 ]
Lu, Junsheng [2 ]
Chang, Xinyu [2 ]
Hu, Xiaodong [2 ]
机构：
[1] Tianjin Agr Univ, Coll Engn & Technol, Tianjin, Peoples R China
[2] Tianjin Univ, State Key Lab Precis Measuring Technol & Instrume, Tianjin, Peoples R China
来源：
2018 IEEE INTERNATIONAL CONFERENCE ON MANIPULATION, MANUFACTURING AND MEASUREMENT ON THE NANOSCALE (3M-NANO) - CONFERENCE PROCEEDINGS | 2018年
关键词：
digital holography; phase; noise; bidimensional empirical mode decomposition;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A phase noise optimizing method was proposed in this paper to improve the imaging quality of digital microscopic holography (DHM). In this method, bidimensional empirical mode decomposition (BEMD) was utilized to decompose the digital hologram. According to the principle of decomposition, the characteristics of first order intrinsic mode function (IMF1) are close to the gray value of ideal interference fringes. Therefore, after using BEMD method the digital hologram was optimized with enhanced interference fringes, from which phase image with reduced noise can be retrieved. The validity of the proposed method on noise reduction was verified by experimental results on a nano-step.
引用
收藏
页码：382 / 385
页数：4
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