光子学报 ›› 2019, Vol. 48 ›› Issue (10): 1009001-1009001.doi: 10.3788/gzxb20194810.1009001

• 全息术 • 上一篇    下一篇

基于POCS的数字全息显微系统的超分辨实验研究

冯丹青1, 田爱玲1, 刘丙才1, 冯方1, 王大森2, 刘卫国1   

  1. 1. 西安工业大学 光电工程学院, 陕西省薄膜技术与光学检测重点实验室, 西安 710021;
    2. 中国兵器科学院宁波分院, 浙江 宁波 310022
  • 收稿日期:2019-06-04 出版日期:2019-10-25 发布日期:2019-07-15
  • 通讯作者: 田爱玲(1964-),女,教授,博士,主要研究方向为光学检测及光电测量技术.Email:ailintian@xatu.edu.cn E-mail:ailintian@xatu.edu.cn
  • 作者简介:冯丹青(1994-),女,硕士研究生,主要研究方向为数字全息技术.Email:fengdanqing94@163.com
  • 基金资助:

    科技部国际合作项目(No.2015DFA10360),陕西省教育厅项目(No.17JS048)

Super-resolution Experimental Study of Digital Holographic Microscopy Based on POCS

FENG Dan-qing1, TIAN Ai-ling1, LIU Bing-cai1, FENG Fang1, WANG Da-sen2, LIU Wei-guo1   

  1. 1. Shaanxi Province Key Laboratory of Membrane Technology and Optical Test, School of Optoelectronic Engineering, Xi'an Technological University, Xi'an 710021, China;
    2. The Ningbo Branch of Ordnance Science Institute of China, Ningbo, Zhejiang 310022, China
  • Received:2019-06-04 Online:2019-10-25 Published:2019-07-15
  • Contact: 2019-07-15 E-mail:ailintian@xatu.edu.cn
  • Supported by:

    The International Cooperation Project of the Ministry of Science and Technology (No.2015DFA10360),Project of Shaanxi Education Department (No.17JS08)

摘要:

为提高数字全息显微系统的重建效果,将凸集投影算法应用于数字全息中,以实现数字全息的超分辨重建.首先,在数字全息和凸集投影法的理论基础上,搭建透射式离轴数字全息显微实验光路.然后,利用分辨率板验证凸集投影法在全息图超分辨率复原中的有效性.最后,通过微透镜阵列验证该方法在三维重建中的可行性.将参考全息图的三维重建结果,分别与低分辨率全息图和超分辨率复原全息图的重建结果进行残差估计.结果表明,后者残差的峰谷值和均方根值相比前者分别降低了36.88%和70.66%,证明该方法能够实现数字全息的超分辨重建.

关键词: 角谱法, 数字全息, 超分辨技术, 凸集投影, 光学测量

Abstract:

In order to improve the reconstruction effect of digital holographic microscopy system, the Project Onto Convex Set (POCS) algorithm is applied to digital holography to achieve super-resolution reconstruction of hologram. Firstly, based on the theory of digital holography and POCS algorithm, the optical path of transmissive off-axis digital holography is established. Then, the resolution board is used to verify the effectiveness of the POCS algorithm in hologram super-resolution restoration. Finally, the feasibility of the method in 3D reconstruction is verified by microlens array. The residual estimation results of the low-resolution hologram and the super-resolution restored hologram are respectively estimated by the three-dimensional reconstruction result of the reference hologram. The PV and RMS of the latter residuals are reduced by 36.88% and 70.66%, respectively, which proves that the method can achieve super-resolution reconstruction of digital holography.

Key words: Optical testing, Super resolution algorithm, Digital holography, Angular spectrum, Project onto convex set

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