Fast reconstruction of multiple off-axis holograms based on a combination of complex encoding and digital spatial multiplexing

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英文篇名：Fast reconstruction of multiple off-axis holograms based on a combination of complex encoding and digital spatial multiplexing 作者：沙贝 ; 鲁玉洁 ; 谢一言 ; 岳庆炀 ; 国承山 英文作者：Bei Sha;Yujie Lu;Yiyan Xie;Qingyang Yue;Chengshan Guo;College of Physics and Electronics, Shandong Normal University;College of Physics and Electronic Engineering, Qilu Normal University; 中文刊名：GXKB 英文刊名：中国光学快报(英文版) 机构：College of Physics and Electronics, Shandong Normal University;College of Physics and Electronic Engineering, Qilu Normal University; 出版日期：2016-06-10 出版单位：Chinese Optics Letters 年：2016 期：v.14 基金：supported by National Natural Science Foundation of China under Grant No.11474186 语种：英文; 页：GXKB201606008 页数：5 CN：06 ISSN：31-1890/O4 分类号：40-44

摘要

An algorithm is proposed for the fast reconstruction of off-axis digital holograms based on a combination of complex encoding(CE) and spatial multiplexing(SM). In this algorithm, every two off-axis holograms recorded in sequence are first assembled into a CE hologram using the CE method, and then four of the CE holograms are again encoded into one complex spatial multiplexing(CSM) hologram based on the SM algorithm. It is demonstrated that the eight holograms encoded into such one CSM hologram can be quickly reconstructed by performing a two-dimensional(2D) Fourier transform(FT) on the CSM hologram. Using this method, the eight 2D FTs required for the reconstruction of the eight holograms in the conventional spatial filtering methods can be simplified to a process with only one 2D FT, which can largely improve the computation efficiency with the
        An algorithm is proposed for the fast reconstruction of off-axis digital holograms based on a combination of complex encoding(CE) and spatial multiplexing(SM). In this algorithm, every two off-axis holograms recorded in sequence are first assembled into a CE hologram using the CE method, and then four of the CE holograms are again encoded into one complex spatial multiplexing(CSM) hologram based on the SM algorithm. It is demonstrated that the eight holograms encoded into such one CSM hologram can be quickly reconstructed by performing a two-dimensional(2D) Fourier transform(FT) on the CSM hologram. Using this method, the eight 2D FTs required for the reconstruction of the eight holograms in the conventional spatial filtering methods can be simplified to a process with only one 2D FT, which can largely improve the computation efficiency with the

引文

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