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相关概念视频

Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

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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...
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通过灵活的多模式纤维进行强大的实时成像.

Abdullah Abdulaziz1, Simon Peter Mekhail2, Yoann Altmann3

  • 1School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK. a.abdulaziz@hw.ac.uk.

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概括

这项研究引入了一种新的成像系统,使用单一的灵活光纤,从扭曲的斑点图案中重建清晰的图像. 该系统坚固地曲,不需要远端反,从而实现了新的灵活成像可能性.

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科学领域:

  • 光学和光子学 在光学和光子学.
  • 生物医学成像技术 生物医学成像技术
  • 机器学习 机器学习

背景情况:

  • 传统的内镜使用纤维捆绑,限制了灵活性.
  • 单模多模光纤 (MMF) 提供了潜在的小型化,但由于模态分散和合而遭受图像扭曲 (斑点图案).
  • 纤维曲进一步复杂化了MMF成像,阻碍了灵活的应用.

研究的目的:

  • 开发一个实时成像系统,使用灵活的货币市场基金,耐曲.
  • 为了展示从斑点图案的图像重建,而没有远端反.
  • 为了使MMF能够用于以前因曲引起的扭曲而受到阻碍的灵活成像应用.

主要方法:

  • 使用单一多模光纤 (MMF) 进行图像传输.
  • 使用变化自编码器 (VAE) 来从斑点图案中重建图像.
  • 训练了VAE,使其对光纤曲配置的变化具有坚固性.

主要成果:

  • 通过300毫米MMF传输的斑点图案成功重建了图像.
  • 即使光纤曲配置在训练集之外,也证明了图像恢复.
  • 该系统在纤维曲的50°变化和8厘米的运动范围中显示出强度.

结论:

  • 拟议的系统可以通过灵活的货币市场基金实现实时成像,克服曲引起的斑点扭曲的局限性.
  • 基于VAE的方法允许进行强大的图像重建,而不需要远端信息.
  • 这项技术有可能用于先进的灵活内镜成像和其他需要微型光学系统的应用.