相关实验视频
Updated: Jan 8, 2026

11:59
High-speed Particle Image Velocimetry Near Surfaces
Published on: June 24, 2013
33.7K
基于表面的富里埃点图显微镜.
Cheng Hung Chu1,2, Hao-Pin Chiu1, Cheng Yu3
1Institute of Medical Device and Imaging, National Taiwan University, Taipei 10051, Taiwan.
Nanophotonics (Berlin, Germany)
|December 22, 2025
概括
我们开发了一种紧的元光学显微镜,使用元里叶图谱 (FP) 和人工智能实现高分辨率成像. 这种便携式系统克服了传统FP的局限性,能够更快,更准确的定量相位成像.
科学领域:
- 光学和光子学 在光学和光子学.
- 计算成像技术的成像
- 生物医学工程 生物医学工程
背景情况:
- 超光学使小型化,高性能成像系统成为可能.
- 富里埃图谱 (FP) 提供高分辨率的定量相位成像,但传统上需要重的光学和机械扫描.
- 现有的FP方法在可移植性和速度方面面临挑战.
研究的目的:
- 开发一个紧而快速的里叶图谱 (FP) 显微镜平台.
- 克服传统FP系统的局限性,使用元光学和人工智能.
- 为了证明高分辨率的定量相位成像与改进的便携性和速度.
主要方法:
- 集成一个 4-f metalens 系统用于微型化.
- 使用可编程薄膜晶体管 (TFT) 面板,用于无机械运动的不同角度照明.
- 使用剩余卷积神经网络 (RCNN) 来从低分辨率输入进行一次性,高分辨率的相位重建.
主要成果:
- 实现了近两倍的分辨率改进 (7.81微米到3.91微米).
- 证明了精确的定量阶段恢复,在阶段标准上<10%的误差.
- 展示了可靠的H1975细胞干质量估计,平均偏差<12%.
结论:
- 超FP平台为定量相位成像提供了一个快速,紧,高性能的解决方案.
- 超表面光学和AI的整合加快了成像并提高了分辨率.
- 潜在的应用包括活细胞成像,微流体监测和临床诊断.
相关概念视频
Overview of Microscopy Techniques
14.7K
The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...
14.7K
Super-resolution Fluorescence Microscopy
12.1K
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...
12.1K

