通过改进的二进制调幅掩码实现高效相位检索

IF 2.1 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Chao Yang;Cheng Xu;Hui Pang;Jun Lan;Lixin Zhao;Song Hu;Wei Yan;Xianchang Zhu
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引用次数: 0

摘要

由于测量强度有限,传统的迭代相位检索存在固有的相位模糊性。多模态振幅调制引入了物理约束来解决相位不确定的难题。然而,掩膜切换造成的时间开销会降低成像速度。为了提高成像速度,我们报告了一种通过优化调制掩码来加速编码相位检索的方法。与需要至少四种模式作为输入的现有方法相比,所提出的方法只需要三种掩模调制,就能稳健地重建复杂物体。两个掩码的透明像素部分重叠,对目标函数构成了强大的约束。额外的随机掩模增加了衍射强度模式之间的差异,确保算法收敛。所提出的使用纯振幅元素进行高效调制的方法可能会为短波长高速复振幅成像打开一扇大门。数值模拟和原理验证实验验证了这种方法的可行性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Efficient Phase Retrieval via Improved Binary Amplitude Modulation Masks
Conventional iterative phase retrieval suffers from an inherent phase ambiguity due to limited measurement intensity. Multimodal amplitude modulation introduces physical constraints to tackle the underdetermination challenge. However, the time overhead caused by mask switching slows down the imaging speed. To increase imaging speed, we report an accelerated coded phase retrieval method by optimizing modulation masks. Compared to existing methods that require at least four patterns as inputs, the proposed method requires only three mask modulations to robustly reconstruct complex objects. The transparent pixels of the two masks partially overlap, constituting a strong constraint on the objective function. An additional random mask increases the difference between diffraction intensity patterns and ensures that the algorithm converges. The proposed method of efficient modulation using pure amplitude elements may open the door to short-wavelength high-speed complex amplitude imaging. Numerical simulations and proof-of-principle experiments have verified the feasibility of this method.
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来源期刊
IEEE Photonics Journal
IEEE Photonics Journal ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS
CiteScore
4.50
自引率
8.30%
发文量
489
审稿时长
1.4 months
期刊介绍: Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.
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