Θ-Net:一种深度神经网络架构,用于提高相模拟光学显微镜在的分辨率
Shiraz S Kaderuppan1, Anurag Sharma1, Muhammad Ramadan Saifuddin1
1Faculty of Science, Agriculture & Engineering (SAgE), Newcastle University, Newcastle upon Tyne NE1 7RU, UK.
Sensors (Basel, Switzerland)
|October 16, 2024
概括
我们开发了 Θ-Net,这是一种经济高效,非侵入性的计算方法,用于提高光学显微镜对非光图像的分辨率. 这种深度学习方法可以改善图像的细节,而不需要先前的光学系统信息.
科学领域:
- 计算机成像和光学计量学.
- 深度学习用于图像增强.
背景情况:
- 标准光学显微镜具有分辨率限制 (~200 nm),需要像光纳米镜这样的先进技术.
- 光纳米镜面临的挑战包括光毒性,探针干扰和高成本.
- 在非光显微镜中提高分辨率对于各种科学和工业应用至关重要.
研究的目的:
- 引入 Θ-Net,这是一种新的深度学习架构,用于提高非光,相调节光学显微镜图像的解析度.
- 评估 Θ-Net 的性能与现有的超级分辨率框架相比.
- 证明跨领域转移学习在差异干扰对比 (DIC) 和相对比显微镜 (PCM) 中改善图像质量的有效性.
主要方法:
- 开发了一系列连接的O-Net架构的三重链,称为 Θ-Net.
- 应用跨领域转移学习使用DIC和PCM的数据集.
- 将 Θ-Net 的增强分辨率 (ER) 图像与来自 ANNA-PALM,BSRGAN 和 3D RCAN 的图像进行比较.
主要成果:
- 与其他深度神经网络 (DNN) 相比, Θ-Net 生成了 ER 图像,其细节显著增加.
- Θ-Net成功地近似了DIC和PCM数据集的地面真相图像.
- 该方法即使在信号噪声比较差的情况下也能获得高分辨率的图像,而不需要先前的点扩散函数 (PSF) 或光学传输函数 (OTF) 信息.
结论:
- Θ-Net为光学显微镜中的超分辨率提供了一种经济高效且非侵入性的计算解决方案.
- 该架构在图像细节增强方面表现出优越的性能,与现有的DNN相比.
- 这种方法在生物医学成像,精密工程和光学计量学中具有很大的应用潜力.
相关概念视频
Imaging Biological Samples with Optical Microscopy
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
Phase Contrast and Differential Interference Contrast Microscopy
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...


