相位恢复
太赫兹辐射
探测器
光学
计算机科学
振幅
动态范围
相(物质)
航程(航空)
衍射
迭代重建
宽动态范围
数据采集
强度(物理)
修补
图像质量
质量(理念)
傅里叶变换
人工智能
计算机视觉
物理
材料科学
图像(数学)
量子力学
复合材料
操作系统
作者
Elizaveta G. Tsiplakova,Jean-Baptiste Perraud,Adrien Chopard,Jean-Paul Guillet,Patrick Mounaix,Nikolay V. Petrov
出处
期刊:Optics Letters
[The Optical Society]
日期:2023-10-16
卷期号:48 (21): 5463-5463
摘要
Multiplane iterative phase retrieval is a promising approach to diffraction imaging, which accurately determines the topographic and internal characteristics of various objects. Nevertheless, the detection systems used often have a limited dynamic range, resulting in overexposure of recorded intensity distributions. In this Letter, we present a novel, to the best of our knowledge, reconstruction algorithm that inpaints saturated areas on the measured intensity datasets and reliably retrieves wave complex amplitude. The proposed technique can be used in various spectral ranges, while we have tested it in the terahertz frequency range, where the problem of sources and detectors is most acute. We show that retrieved amplitude and phase distributions have a quality comparable to that of the images reconstructed from the reference high dynamic range technique. Herewith, the proposed approach seriously simplifies the process of data acquisition, what expands the possibilities in the design of measurement tools and studies of dynamic scenes.
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