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Three-Dimensional Microscopy in Microbiology

Three-Dimensional Microscopy in Microbiology

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...

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Updated: May 12, 2026

Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

Published on: August 16, 2012

无基线结构光3D成像使用一个 metasurface 双螺旋点投影仪.

Zicheng Shen¹, Yibo Ni¹, Yuanmu Yang¹

¹State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China.

Nanophotonics (Berlin, Germany)

|April 28, 2025

概括

这项研究引入了一种新的无基线结构光3D成像系统. 它克服了现有方法在各种场景中准确的3D点云采集的局限性.

科学领域:

光学和光子学在光学和光子学.
计算机视觉计算机视觉
计量学计量学计量学

背景情况:

结构光3D成像通常需要很长的基线长度,限制其在狭窄的空间中的使用.
被动3D成像方法在没有纹理的场景中扎.
现有的3D成像技术在空间限制和场景纹理方面存在局限性.

研究的目的:

开发一个没有基线的结构光3D成像系统.
结合结构光和深度依赖的点传播函数 (PSF) 的优势.
为了在空间有限和无纹理的环境中实现准确的3D成像.

主要方法:

一个超表面被设计为投射一个结构化的点阵列.
深度信息被编码在每个投射点的双螺旋模式中.
一个快速的算法被用于3D点云采集.

主要成果:

使用拟议的系统,证明了准确的3D点云采集.
成功拍摄了现实世界的场景,包括多个纸板盒和一个人脸.
该系统通过地表生成的模式有效地编码深度信息.

结论:

关键词:

没有基线的基线.metasurface 双螺旋点投影仪结构光3D成像 3D成像

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Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

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Last Updated: May 12, 2026

Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

Lensfree On-chip Tomographic Microscopy Employing Multi-angle Illumination and Pixel Super-resolution

Published on: August 16, 2012

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques

High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques

Published on: December 3, 2013

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Demonstration of Equal-Intensity Beam Generation by Dielectric Metasurfaces

Published on: June 7, 2019

开发的无基线结构光系统整合了现有方法的优势.
这种技术提供了准确的3D成像,没有长时间的基线要求.
潜在的应用包括消费电子和精密计量学.