基于欧拉运动放大的微小振动测量技术综述
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1.北京航空航天大学仪器科学与光电工程学院 北京 100191; 2.北京航空航天大学前沿科学技术创新研究院 北京 100191

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TB936

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**基础科学研究计划项目(***601*10)、京沪高铁重点项目(20100002021140002)资助


Review of vibration measurement techniques based on euler motion magnification
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1.School of Instrumentation and Optoelectronic Engineering, Beihang University,Beijing 100191, China; 2.Research Institute for Frontier Science, Beihang University,Beijing 100191, China

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    摘要:

    在工程振动测量领域,近年基于机器视觉的振动测量方法是最常用的技术手段。针对微小幅度振动测量问题,依赖于传统图像处理算法的视觉测量方法难以测准测精,对此,基于机器视觉的运动放大方法是很好的解决方案。这种方法将人眼难以察觉的微小运动进行放大,再结合图像运动信息提取方法,实现了更准确的运动信息测量。本文总结了目前常用的基于机器视觉的振动测量方法,重点围绕基于机器视觉的运动放大技术展开详细介绍。运动放大技术主要分为拉格朗日放大方法及欧拉放大方法,本文介绍了拉格朗日放大技术和欧拉放大技术方法的起源发展,对两类方法的核心进行了对比分析,阐述了欧拉运动放大技术的优越性,进一步详细介绍了多种欧拉放大技术的改进方法,分析了各类改进方法的特点和局限性。最后,总结了基于欧拉运动放大的微小振动测量技术的发展前景。

    Abstract:

    In the field of engineering vibration measurement, the vibration measurement method based on machine vision is a commonly used technical means in recent years. For small amplitude vibrations, visual measurement methods relying on traditional image processing algorithms are difficult to measure accurately. To solve this problem, a machine vision-based motion magnification method was proposed. It achieves more accurate motion information measurement by amplifying the tiny motion that is difficult to detect by the human eye and combining with the image motion extraction method. First, this paper summarizes the commonly used machine vision-based vibration measurement methods, focusing on the detailed introduction of machine vision-based motion magnification technology. Motion magnification methods include Lagrangian magnification approach and Eulerian magnification approach. The origin of both motion magnification methods is introduced. The two technologies’ feature are analyzed and compared. Then the various improvement methods of Euler magnification techniques are introduced in detail, including the characteristics and limitations. Finally, the development prospects of small amplitude vibrations measurement technology based on Euler motion magnification are discussed.

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朱美意,陈日东,郑德智.基于欧拉运动放大的微小振动测量技术综述[J].电子测量技术,2023,46(11):90-98

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  • 在线发布日期: 2024-02-05
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