多光谱直线全息图重建与偏差补偿应用到Gram染色细菌显微镜
Dylan Brault1, Thomas Olivier1, Nicolas Faure2
1Université Jean Monnet Saint-Etienne, CNRS, Institut d Optique Graduate School, Laboratoire Hubert Curien UMR 5516, 42023, Saint-Etienne, France.
Scientific reports
|September 2, 2023
概括
这项研究引入了一种新的方法,通过校准光学偏差来改进全息显微镜. 这提高了重建对象属性的准确性,有助于细菌分析.
科学领域:
- 光学显微镜是一种光学显微镜.
- 全息影像的使用方法.
- 图像重建 图像重建
背景情况:
- 光学偏差限制了多光谱数字直线全息显微镜 (DIHM) 的精度.
- 传导率,相位和形态的重建受到这些异常的影响,影响重复性.
研究的目的:
- 开发和验证一种用于校准和纠正DIHM中的光学偏差的方法.
- 提高定量相位和传导度重建的可重复性和准确性.
主要方法:
- 使用透明珠子对模型的校准,以估计波长依赖的,位置变异的偏差.
- 规则化的反向问题方法 (IPA) 用于多波长全息图的联合重建.
- 将移位变量的色谱和几何偏差纳入前向模型.
主要成果:
- 该方法表明可重复评估光学偏差.
- 改进了传导率和相位信息的重建中的可重复性.
- 增强了光谱特征的对比度,以改善对象分析.
结论:
- 开发的方法有效地纠正DIHM中的光学偏差.
- 这种方法增强了定量成像,特别有利于染色的生物样本,如细菌.
- 改进的重建支持基于显微镜的分析和分类中的应用.
相关概念视频
Super-resolution Fluorescence Microscopy
7.0K
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...
7.0K
Three-Dimensional Microscopy in Microbiology
65
Three-dimensional imaging techniques are essential in cell biology, allowing researchers to visualize intricate cellular structures with high resolution. Two prominent methods, Differential Interference Contrast Microscopy (DIC) and Confocal Scanning Laser Microscopy (CSLM), provide distinct advantages for imaging live and thick specimens, respectively.Differential Interference Contrast MicroscopyDIC microscopy enhances contrast in transparent, unstained samples by converting phase...
65
Two-Dimensional Microscopy in Microbiology
79
Two-dimensional (2D) microscopy encompasses a range of optical techniques that capture images within a single focal plane, offering detailed representations of microscopic structures. These techniques are essential in biological and medical research, enabling the visualization of cellular and subcellular structures with different levels of contrast and specificity.There are several major types of 2D microscopy, each with strengths and applications.Bright-Field MicroscopyBright-field microscopy...
79


