使用衍射深度神经网络用于基于泽尼克多项式的间接阶段恢复
Fang Yuan1,2, Yang Sun1, Yuting Han1,2
1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China.
Sensors (Basel, Switzerland)
|January 26, 2024
概括
这项研究引入了一种用于间接相位检索的新型衍射神经网络,克服了传统方法的局限性. 该方法准确地重建了扭曲的相位,增强了自适应光学系统.
科学领域:
- 光学和光子学 在光学和光子学.
- 人工智能在成像中的使用
背景情况:
- 图像系统中的传统相位逆转技术面临着传感器速度和系统复杂性的挑战.
- 准确的相位分布信息对于监测和调整成像系统性能至关重要,特别是在自适应光学中.
研究的目的:
- 提出并验证使用衍射神经网络的间接相位检索方法.
- 为了克服传统相位逆转技术的速度和复杂性限制.
主要方法:
- 一种间接的相检索方法,利用具有多个衍射层的衍射神经网络.
- 通过非源衍射从具有扭曲相位的事件光束中重建泽尼克多项式系数.
- 网络培训和模拟测试,以评估单序和多序相逆转的性能.
主要成果:
- 经过训练的网络证明了单序相识别和多序复合相逆转的能力.
- 分析证实了网络的概括性和网络深度对恢复准确性的影响.
- 实现了0.086λ的平均根平均平方误差,用于相位逆转.
结论:
- 拟议的衍射神经网络提供了一种有效的间接阶段检索方法.
- 这项研究提供了适应光学系统相恢复的新方法.
- 这种方法有望提高光学成像系统的性能和适应性.
相关概念视频
Inverse z-Transform by Partial Fraction Expansion
331
The inverse z-transform is a crucial technique for converting a function from its z-domain representation back to the time domain. One effective method for finding the inverse z-transform is the Partial Fraction Method, which involves decomposing a function into simpler fractions with distinct coefficients. These fractions correspond to known z-transform pairs, facilitating the inverse transformation process.
To begin the process, the poles of the function are identified and the function is...
To begin the process, the poles of the function are identified and the function is...
331
Phase Contrast and Differential Interference Contrast Microscopy
8.1K
Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
8.1K
Deconvolution
160
Deconvolution, also known as inverse filtering, is the process of extracting the impulse response from known input and output signals. This technique is vital in scenarios where the system's characteristics are unknown, and they must be inferred from the observable signals.
Deconvolution involves several mathematical techniques to derive the impulse response. One common approach is polynomial division. In this method, the input and output sequences are treated as coefficients of...
Deconvolution involves several mathematical techniques to derive the impulse response. One common approach is polynomial division. In this method, the input and output sequences are treated as coefficients of...
160


