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相关概念视频

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

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Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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相关实验视频

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High-resolution, High-speed, Three-dimensional Video Imaging with Digital Fringe Projection Techniques
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强大的结构光3D测量方法基于偏振编码的投影模式.

Zhenmin Zhu, Yumeng Zhou, Wenquan Lu

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    此摘要是机器生成的。

    一种新的极化编码结构光方法改善了高动态范围 (HDR) 对象的3D视觉测量. 这种技术提高了边缘质量,导致更准确的3D重建,没有丢失的数据.

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    科学领域:

    • 光学计量学 在光学计量学
    • 3D视觉系统 3D视觉系统
    • 计算成像技术的成像

    背景情况:

    • 边缘投影分析 (FPP) 是一种强大的3D视觉技术,但由于表面反射性问题,它与高动态范围 (HDR) 的物体存在困难.
    • 在HDR对象成像中过度曝光会破坏边缘侧面性,导致相位错误和不准确的包裹相位计算.
    • 现有的方法在保持边缘质量和反射表面的相位精度方面面临挑战.

    研究的目的:

    • 提出一种新的极化编码阴形结构光方法,以提高3D视觉测量的边缘质量.
    • 开发一个极化编码辅助结构光测量策略 (PASM),以改善HDR对象的相解封.
    • 为了实现HDR对象的准确和稳定的3D重建,而不会丢失数据.

    主要方法:

    • 引入了极化编码的正弦结构光,其中相位信息在极化状态下编码,独立于光强度.
    • 开发了极化编码辅助结构光测量 (PASM) 策略,利用极化编码边缘进行相位转移.
    • 采用固定线性偏光器 (零角) 的单次曝光方法,消除了偏光器旋转的需要.

    主要成果:

    • 与传统方法相比,拟议的两极化编码边缘显示出优越的侧侧性.
    • 通过PASM实现了更准确的相位解封,从而产生了稳定而精确的3D相位图.
    • 重建的3D点云显示出更高的准确性和完整性,没有缺少HDR对象的数据点.

    结论:

    • 极化编码的结构光有效地提高了HDR对象的边缘质量和测量精度.
    • 该PASM策略为具有挑战性的反射表面的3D视觉测量提供了可靠和高效的解决方案.
    • 这种方法为需要高精度HDR目标的应用提供了在3D形状测量方面的显著进步.