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基于图像零均值化的带钢缺陷检测 被引量:9

Strip Steel Defect Detection Based on Zero-Mean Method
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摘要 针对带钢表面缺陷的特点,提出了一种基于图像零均值化的检测方法。首先,通过对测试图像进行零均值化,以消除光照对检测的影响;其次,利用维纳滤波对零均值化图像进行滤波除噪;在此基础上,采用Sobel进行锐化处理;最后,通过最大类间方差法进行图像分割,从而实现对带钢表面缺陷的检测。试验表明,本方法能够有效抑制图像背景干扰,有效地实现带钢缺陷的快速检测。 Through the analysis of surface defect characteristic about strip steel, a new method of based on zero- mean image processing was presented to strip steel defect detection. First of all, the test image was processed by zero-mean in order to eliminate the effect of light on the detection. Secondly, the zero-mean image was de-noised by using Wiener filtering. On this basis, the Sobel operator was used to share image target edge in order to detec- tion strip steel surface defect. Finally, the strip steel surface defect was rapidly detected by using oust image seg- mentation. The results show that the method can effectively suppress the image background interference, and more rapidly realize the detection of strip steel surface defect.
出处 《钢铁研究学报》 CAS CSCD 北大核心 2013年第4期59-62,共4页 Journal of Iron and Steel Research
关键词 带钢缺陷 零均值化 维纳滤波 缺陷检测 strip steel defect zero-mean Wiener filtering defect detection
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