| 像前与像后预放大与数字全息显微成像比较 |
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| 引用本文： | 赵宝群,栗军香,江夏男,朱巧芬.像前与像后预放大与数字全息显微成像比较[J].影像科学与光化学,2016,34(1):68-74. |
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| 作者姓名： | 赵宝群 栗军香 江夏男 朱巧芬 |
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| 作者单位： | 1. 河北工程大学理学院, 河北邯郸 056038;
2. 河北工程大学临床医学院, 河北邯郸 056000;
3. 河北博夏光电信息科技有限公司, 河北邯郸 056038 |
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| 基金项目： | 国家自然科学基金项目(61465005)，河北省自然科学基金项目(F2014402090、A2013402036、F2012402059)，河北省高等学校科学技术研究项目(YQ2014013) |
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| 摘 要： | 随着数字全息显微技术在医学影像信息处理领域的广泛应用,本文对其影像信息系统进行了研究。基于菲涅耳衍射公式和线性系统理论,对像前及像后预放大数字全息显微成像过程进行了理论分析,推导了系统的点扩散函数,分析了系统成像的横向分辨率,并对这两种系统的成像性能进行了比较,最后利用分辨率测试板进行了实验验证。
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| 关 键 词： | 数字全息 数字全息显微 预放大数字全息术 横向分辨率 |
| 收稿时间： | 2015-10-23 |
Comparison of Pre-magnification Digital Holography as CCD Located in Front of Image-plane and Behind the Plane |
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| ZHAO Baoqun,LI Junxiang,JIANG Xianan,ZHU Qiaofen.Comparison of Pre-magnification Digital Holography as CCD Located in Front of Image-plane and Behind the Plane[J].Imaging Science and Photochemistry,2016,34(1):68-74. |
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| Authors: | ZHAO Baoqun LI Junxiang JIANG Xianan ZHU Qiaofen |
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| Institution: | 1. College of Science, Hebei University of Engineering, Handan 056038, Hebei, P. R. China;
2. College of Clinical Medicine, Hebei University of Engineering, Handan 056000, Hebei, P. R. China;
3. Hebei Boxia Photoelectric Mdt. Info. Tech. Ltd., Handan 056038, Hebei, P. R. China |
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| Abstract: | Based on Fresnel diffraction formula and linear system theory, the imaging process of pre-magnification digital holography as CCD located in front of image-plane and behind the plane is analyzed. The point spread functions of the two systems are derived. Then the lateral resolution of the systems are analyzed. The imaging performance of the two systems are compared. Experiments are carried out using a resolution test target. |
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| Keywords: | digital holography digital holographic microscopy pre-magnification digital holography lateral resolution |
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