| 基于运动模糊及图像矩的2D高频直线振动振幅测量 |
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| 引用本文： | 关柏青,王石刚. 基于运动模糊及图像矩的2D高频直线振动振幅测量[J]. 上海交通大学学报, 2007, 41(3): 447-451 |
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| 作者姓名： | 关柏青 王石刚 |
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| 作者单位： | 上海交通大学,机械与动力工程学院,上海,200240;上海交通大学,机械与动力工程学院,上海,200240 |
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| 摘 要： | 介绍了一种新的根据图像的运动模糊信息测量高频振动振幅的方法.与现有的基于计算机视觉的振动测量方法相比,该方法仅通过计算1幅清晰参考图像及1幅运动模糊图像的前2阶几何矩即可得到2D高频直线振动振幅的解析解,降低了根据图像信息测量振幅的计算复杂程度.实验结果表明,所提出方法可有效地测量高频振动的振幅.
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| 关 键 词： | 振动测量 运动模糊 运动模糊图像 几何矩 |
| 文章编号： | 1006-2467（2007）03-0447-05 |
| 修稿时间： | 2006-03-26 |
The Amplitude Measurement of High-frequency Vibration from Motion Blur Using Moments |
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| GUAN Bai-qing,WANG Shi-gang. The Amplitude Measurement of High-frequency Vibration from Motion Blur Using Moments[J]. Journal of Shanghai Jiaotong University, 2007, 41(3): 447-451 |
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| Authors: | GUAN Bai-qing WANG Shi-gang |
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| Affiliation: | School of Mechanical Eng. , Shanghai Jiaotong Univ. , Shanghai 200240, China |
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| Abstract: | This paper presented a novel motion-blur-based method for measuring the amplitude of high-frequency vibration.Compared with the existing vision-based method for vibration measurement,this method obtains the analytical results of the amplitude of high-frequency vibration by calculating the first and second order geometric moments of a motion blurred image and an unblurred reference image.This reduces the computational complexity for vibration measurement from images. Experimental results were provided to prove the effectiveness of this method. |
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| Keywords: | vibration measurement motion blur motion blurred image geometric moments |
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