三维高速振动低速运动物体的清晰图像获取及其评价

IF 5.6 2区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Shinnosuke Yonezu;Yuji Yamakawa
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引用次数: 0

摘要

精密外观检测的自动化在制造业中是至关重要的。特别是在生产线上,需要对运动和振动的物体进行高倍放大的精密外观检查。然而,在我们之前的研究中,高速振动跟踪技术使用的是高速视觉系统,低速运动的物体只能捕捉到瞬间,导致视角出现偏差。在本研究中,为了实现在线精密外观检测,我们提出了一种从高速振动和低速运动复杂结合的现象中获取清晰图像的方法,并对其规格进行评估。提出了四种方法。第一种方法是捕捉在视场内高速移动的物体,而不跟踪它们的低速运动,获得清晰的图像。第二种方法是统计分离物体的运动和振动元素,高精度地跟踪物体的振动和运动,获得清晰的图像。第三种是利用立体摄像机识别最近的物体,跟踪物体,获取清晰图像的方法。第四种是利用立体摄像机识别差分物体,跟踪物体,获取清晰图像的方法。结果表明,平面方向振幅为1 mm的振动,简谐运动的极限频率为64.5 Hz,旋转运动的极限频率为12.8 Hz,焦方向振幅为2 mm的振动,极限频率为10.0 Hz。最大移动速度为29 mm/s,表明这是一种高效的系统,可以以超过50\times $ /s的频率获得清晰的图像。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Acquiring Clear Images for Objects Undergoing 3-D High-Speed Vibration and Low-Speed Motion and Its Evaluation
Automation of precision appearance inspection is critical in the manufacturing industry. In particular, on the production line, it is necessary to perform precision appearance inspection at high magnification on objects that are moving and vibrating. However, in our previous studies, high-speed vibration tracking technology using a high-speed vision system object moving at a slow speed can only be captured for an instant, resulting in a deviation from the viewing angle. In this study, to realize in-line precision appearance inspection, we propose a method to acquire clear images from a phenomenon in which high-speed vibration and low-speed movement are combined in a complex manner and evaluate its specifications. Four methods are proposed. The first is a method that captures objects passing within the field of view at high speed without tracking their low-speed movement and acquires clear images. The second is a method that statistically separates the movement and vibration elements of the object and tracks the vibration and movement with high precision to acquire clear images. The third is a method that uses a stereo camera to recognize the nearest object, track the object, and acquire clear images. The fourth is a method that uses a stereo camera to recognize differential objects, track the object, and acquire clear images. As a result, for a vibration with an amplitude of 1 mm in the planar direction, the limit frequency was 64.5 Hz for simple harmonic motion and 12.8 Hz for rotational motion, and for a vibration with an amplitude of 2 mm in the focal direction, the limit frequency was 10.0 Hz. The maximum movement speed was 29 mm/s, indicating that this is an efficient system that can acquire clear images at a frequency of more than $50\times $ /s.
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来源期刊
IEEE Transactions on Instrumentation and Measurement
IEEE Transactions on Instrumentation and Measurement 工程技术-工程:电子与电气
CiteScore
9.00
自引率
23.20%
发文量
1294
审稿时长
3.9 months
期刊介绍: Papers are sought that address innovative solutions to the development and use of electrical and electronic instruments and equipment to measure, monitor and/or record physical phenomena for the purpose of advancing measurement science, methods, functionality and applications. The scope of these papers may encompass: (1) theory, methodology, and practice of measurement; (2) design, development and evaluation of instrumentation and measurement systems and components used in generating, acquiring, conditioning and processing signals; (3) analysis, representation, display, and preservation of the information obtained from a set of measurements; and (4) scientific and technical support to establishment and maintenance of technical standards in the field of Instrumentation and Measurement.
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