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Aperture Synthesis Based Solely on Phase Images in Digital Holography [Early Posting]

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摘要

Aperture synthesis is an important approach to improve the lateral resolution of digital holography (DH) technique. The limitation of the accuracy of registration positions between sub-holograms affects the quality of the synthesized image and even causes the failure of aperture synthesis. It is a major issue in aperture synthesis of DH. Currently intensity images are utilized to find the registration positions of sub-holograms in aperture synthesis. To improve the accuracy of registration positions, we proposed a method based on similarity calculation of the phase images between the sub-hologram, instead of intensity images. Furthermore, a quantitative indicator, degree of image distortion (DID), was applied to evaluate the synthetic results. Experiments are performed and the results verify that the proposed phase-image based method is better than the state-of-the-art intensity-image based techniques in the estimation of registration positions and provides a better synthesized final 3D shape image.

广告组1 - 空间光调制器+DMD
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作者单位:

    Shanghai Jiao Tong University
    Shanghai Jiao Tong University
    Shanghai Jiao Tong University
    Ngee Ann Polytechnic
    Shanghai Jiao Tong University

引用该论文

Long Jun,Cai Ping,Liu Chiyue,Qu Wei,Yan Hao. Aperture Synthesis Based Solely on Phase Images in Digital Holography[J].Chinese Optics Letters,2021,19(7):07.