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相关概念视频

Super-resolution Fluorescence Microscopy01:37

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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...
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Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
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副像素成像系统具有增强的光学复杂化.

Shengzhi Qiang, Jiawei Shen, Ran Wang

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    此摘要是机器生成的。

    这项研究介绍了一种使用子像素成像和微镜阵列的紧,高效的固态3D LiDAR系统. 这种新的设计减少了探测器数量,以实现具有成本效益的高分辨率3D成像应用.

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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 计算机视觉和成像技术

    背景情况:

    • 传统的光纤捆绑复合器限制了光检测和测距 (LiDAR) 系统的性能.
    • 开发紧的,高效的固态LiDAR对于先进的成像应用至关重要.

    研究的目的:

    • 介绍一种新的固态3D LiDAR系统,利用子像素成像和基于微镜阵列的光学复杂化.
    • 为了展示适合低成本LiDAR应用的可扩展架构.

    主要方法:

    • 2D激光二极管阵列发射器与配有投射镜头,微镜头复合器和雪崩光二极管阵列的接收器的集成.
    • 开发了一种双层微镜阵列,用于精确的子像素聚焦和空间复杂化.
    • 实施多种编码策略,以实现各种分辨率和速度的权衡.

    主要成果:

    • 使用更少的图案,使用CMOS传感器 (320x240) 实现了高分辨率的2D成像 (640x480).
    • 通过增加编码数量,通过降级探测器 (2x2) 启用快速3D成像.
    • 在3D点云重建和2D多重成像中验证的有效性.

    结论:

    • 拟议的亚像素成像技术显著减少了LiDAR系统中的探测器要求.
    • 可扩展的架构适合与飞行时间模块集成,为低成本LiDAR铺平了道路.
    • 该系统为高性能,具有成本效益的3D成像提供了一个有前途的解决方案.