通过光学硬件和深度学习优化,在扩展的视野深度上进行高分辨率光投影成像
Xin Luo1, Zhi Lu2,3,4, Manchang Jin1
1School of Electrical and Information Engineering, Tianjin University, Tianjin, China.
Biomedical optics express
|June 13, 2024
概括
深度聚焦显微镜增强了对生物研究的成像分辨率和深度 (DOF). 这种具有成本效益的方法将深度聚焦网络集成到光场显微镜中,以获得更清晰,更快速的体内观测.
科学领域:
- 生物物理学的生物物理.
- 在光学成像系统中,光学成像
- 显微镜的使用方法
背景情况:
- 传统的宽场显微镜 (WFM) 提供有限的分辨率和深度 (DOF).
- 先进的技术,如共聚焦和光板显微镜提供扩展的DOF,但昂贵和复杂.
- 需要显微镜方法来平衡高分辨率,扩展的DOF和实际可用性.
研究的目的:
- 开发一个高效的深焦显微镜框架,解决分辨率-DOF权衡问题.
- 集成深度聚焦网络 (DFnet) 与光场显微镜 (LFM) 进行增强成像.
- 为了实现高分辨率的投影成像与扩展的DOF.
主要方法:
- 将深度聚焦网络 (DFnet) 集成到光场显微镜 (LFM) 装置中.
- 开发一个定制的数据集用于培训和验证.
- 硬件和算法优化,以实现高效的成像.
主要成果:
- 实现了大约260nm的增强空间分辨率.
- 30微米以上的扩展深度场 (DOF)
- 与传统的LFM相比,计算成本减少了四个数量级.
- 在各种样本结构中表现出广泛的概括性.
结论:
- 深焦显微镜为生物成像提供了一个具有成本效益和高性能的解决方案.
- 该方法可以在没有背景污染的情况下进行高分辨率的长期体内观测.
- 在斑马鱼胚胎和老鼠肝脏中成功地证明了应用,观察细胞分裂和迁移体形成.
相关概念视频
Super-resolution Fluorescence Microscopy
6.9K
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
6.9K
Confocal Fluorescence Microscopy
13.2K
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
13.2K


