Acta Optica Sinica, Volume. 40, Issue 18, 1811001(2020)
Iterative Convergence and Reconstruction Uniqueness of Coherent Modulation Imaging
The iteration progress of coherent modulation imaging (CMI) is equivalent to gradient search algorithm, and a CMI convergence model is established. From the perspective of solving equations, the basic conditions to ensure the uniqueness of reconstruction results are put forward, i.e., the number of non-zero points of the diffraction pattern with a modulation plate is twice as much as that without the modulation plate, or the ratio of the spectrum cut-off width after enlarging λL (λ is the wavelength and L is the diffraction distance) times with the modulation plate to the spectrum cut-off width without the modulation plate is at least 0.414. It is verified by simulation. This study provides a theoretical basis for further optimization of CMI.
Get Citation
Copy Citation Text
Xingchen Pan, Cheng Liu, Jianqiang Zhu. Iterative Convergence and Reconstruction Uniqueness of Coherent Modulation Imaging[J]. Acta Optica Sinica, 2020, 40(18): 1811001
Category: Imaging Systems
Received: May. 2, 2020
Accepted: May. 14, 2020
Published Online: Aug. 31, 2020
The Author Email: Liu Cheng (chengliu@siom.ac.cn)