| 一种光幕测速信号的图像处理技术 |
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| 引用本文： | 黄战华,王东,赵杰,蔡怀宇. 一种光幕测速信号的图像处理技术[J]. 光电工程, 2008, 35(9): 95-98 |
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| 作者姓名： | 黄战华 王东 赵杰 蔡怀宇 |
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| 作者单位： | 天津大学精仪学院光电信息工程系,天津,300072;天津大学精仪学院光电信息工程系,天津,300072;天津大学精仪学院光电信息工程系,天津,300072;天津大学精仪学院光电信息工程系,天津,300072 |
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| 摘 要： | 在光幕靶精密测速系统中,提出了一种基于图像处理算法的信号处理技术,消除随机噪声对光电探测信号的干扰,从而可以精确荻取物体通过前后两光幕靶的间隔时间.该技术将间隔时间的计算转换为图像中目标物体尾部位置的计算.首先去除孤立点、毛刺等图像缺陷,得到只有一个连通区的图像,再用图像面积除以平均宽度计算物体的长度,求出对应的尾部位置.从前后光幕图像的尾部位置分别得到了物体通过前后两光幕靶的准确时间,两者相减最终得到间隔时间.实验表明系统采用该处理技术能够精确荻取间隔时间,实测的速度数据稳定、有效,测量精度可以达到0.05%.
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| 关 键 词： | 光电传感器 速度测量 图像处理 光幕靶 随机噪声 |
| 收稿时间： | 2008-02-10 |
Image Processing Technology for Signal of Light Screen Velocity Measuring System |
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| HUANG Zhan-hua,WANG Dong,ZHAO Jie,CAI Huai-yu. Image Processing Technology for Signal of Light Screen Velocity Measuring System[J]. Opto-Electronic Engineering, 2008, 35(9): 95-98 |
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| Authors: | HUANG Zhan-hua WANG Dong ZHAO Jie CAI Huai-yu |
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| Affiliation: | HUANG Zhan-hua,WANG Dong,ZHAO Jie,CAI Huai-yu ( College of Precision Instrument , Opto-Electronic Engineering,Tianjin University,Tianjin 300072,China ) |
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| Abstract: | In the precision light screen velocity measuring system, a signal processing technology based on the arithmetic of image processing is put forward to eliminate the interference of random noise to opto-electronic detected signals, so the interval time of the object flying through the two light screens can be gained accurately. It converted the counting of interval time into the counting of end position of the object in the image. At first, the image defects such as isolated point, burr etc. were eliminated t... |
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| Keywords: | photoelectric sensor velocity measurement image processing laser screen target random noise |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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