在双光子显微镜 (2P-FOCUS) 中通过富里埃域强度合进行散射校正
Daniel Zepeda1, Yucheng Li1, Y I Xue1
1Department of Biomedical Engineering, University of California, Davis, 451 Health Sciences Dr., Davis, CA, 95616, USA.
ArXiv
|February 24, 2025
概括
我们开发了一种新的2光子显微镜系统,2P-FOCUS,它可以纠正生物组织中的光散射. 这种方法增强了深层组织成像,不需要指导星或传输测量.
科学领域:
- 生物医学光学 生物医学光学
- 显微镜的使用方法
- 生物物理学的生物物理.
背景情况:
- 生物组织中的光线透受到散射的限制.
- 在有限的光子或没有传输访问的情况下,纠正散射是很困难的.
研究的目的:
- 介绍了一种新的两光子显微镜系统,用于散校正 (2P-FOCUS) 的富里埃域强度合.
- 解决由光散射引起的深层组织成像方面的挑战.
主要方法:
- 使用福里埃域强度调制和非线性干扰进行散射校正.
- 采用随机模式和一次性算法来快速生成面具.
- 通过为子区域定制校正面具来克服记忆效应的限制.
主要成果:
- 通过骨和老鼠大脑样本展示了聚焦和成像.
- 与未经纠正的成像相比,显著增强了两光子光信号 (几十个折叠).
- 在大体积 (230×230×510 μm3) 上实现了分散校正,超过了内存效应范围.
- 在几秒钟内完成散射测量,计算和校正.
结论:
- 2P-FOCUS有效地纠正了散射,使光线能够更深入地透到组织中.
- 该系统提供速度,有效性和成本效益,可广泛应用于深层组织成像.
- 2P-FOCUS 消除了对导星,代优化或传输/反射测量的需求.
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