| 数字全息显微中常见重建算法比较 |
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| 引用本文： | 王广俊,王大勇,王华英.数字全息显微中常见重建算法比较[J].激光与光电子学进展,2010(3). |
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| 作者姓名： | 王广俊 王大勇 王华英 |
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| 作者单位： | 北京工业大学应用数理学院;河南省计量科学研究院;河北工程大学理学院; |
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| 基金项目： | 河北省自然科学基金(F2008000750);;河北省科学研究与发展计划(20090101D)资助课题 |
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| 摘 要： | 基于理论分析和实验验证相结合的方法,对数字全息显微术中常见的三种重建算法即菲涅耳变换算法、角谱算法和卷积算法做了比较研究。结果表明:利用菲涅耳变换算法对离轴无透镜傅里叶变换数字全息进行重建时,无重建距离的限制;采用卷积重建法只能在最佳再现距离附近一个非常小的范围内才能获得高分辨率再现像;而采用角谱重建法在略小于最佳再现距离及大于最佳再现距离较大范围内重建,均能获得高分辨率的再现像。角谱重建法总体上优于卷积重建法。菲涅耳变换重建法简单、快捷,是优化的重建算法。
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| 关 键 词： | 数字全息 无透镜傅里叶变换 重建算法 衍射积分 |
Comparison of Commonly Used Numerical Reconstruction Algorithms in Digital Holographic Microscopy |
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| Wang Guangjun, Wang Dayong Wang Huaying College of Applied Sciences Beijing University of Technology Beijing China Henan Institute of Metrology Zhengzhou Henan China College of Sciences Hebei University of Engineering,H,an Hebei China.Comparison of Commonly Used Numerical Reconstruction Algorithms in Digital Holographic Microscopy[J].Laser & Optoelectronics Progress,2010(3). |
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| Authors: | Wang Guangjun Wang Dayong Wang Huaying College of Applied Sciences Beijing University of Technology Beijing China Henan Institute of Metrology Zhengzhou Henan China College of Sciences Hebei University of Engineering H an Hebei China |
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| Affiliation: | Wang Guangjun1,2 Wang Dayong1 Wang Huaying3 College of Applied Sciences Beijing University of Technology Beijing 100022 China Henan Institute of Metrology Zhengzhou Henan 452228 China College of Sciences Hebei University of Engineering,H,an Hebei 056038 China |
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| Abstract: | Based on therotical analysis and experimental demonstration,three commonly used reconstruction algorithms in digital holographic microscopy,Fresnel transform algorithm,angular spectrum algorithm,and convolution algorithm,are investigated.It shows that the lensless Fourier transform digital hologram can be reconstructed at any distance by Fresnel transform algorithm.For convolution algorithm,the whole reconstructed image with high resolution can be acquired in an optimal reconstruction range or a small area ... |
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| Keywords: | digital holography lensless Fourier transform reconstruction algorithm diffraction integral |
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