| 形态小波在中厚板表面裂纹缺陷检测中的应用 |
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| 引用本文： | 吴贵芳,徐科,徐金梧,杨朝霖,孙浩,王春梅.形态小波在中厚板表面裂纹缺陷检测中的应用[J].北京科技大学学报,2006,28(6):591-594. |
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| 作者姓名： | 吴贵芳 徐科 徐金梧 杨朝霖 孙浩 王春梅 |
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| 作者单位： | 1. 北京科技大学机械工程学院,北京,100083
2. 济南钢铁集团总公司技术中心,济南,250101 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 中厚板表面裂纹缺陷在图像中容易受背景噪声和氧化铁皮的影响,传统的图像处理方法很难将裂纹缺陷从图像中检测出来.提出了将形态小波变换应用于中厚板表面裂纹缺陷检测的方法.该方法利用小波分解对突变信号的检测能力,结合裂纹缺陷在形态上近似于直线的性质,将裂纹缺陷从图像中准确提取出来.实验证明形态小波用来检测中厚板表面裂纹缺陷比用其他方法更有效.
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| 关 键 词： | 中厚板 表面裂纹 缺陷检测 形态小波 形态小波变换 中厚板 表面裂纹 缺陷检测 应用 plates medium defect detection surface crack wavelet 验证 提取 性质 直线 上近似 结合 检测能力 突变信号 小波分解 利用 |
| 收稿时间： | 2005-03-07 |
| 修稿时间： | 2005-09-14 |
Application of morphological wavelet in surface crack defect detection of medium plates |
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| WU Guifang,XU Ke,XU Jinwu,YANG Chaolin,SUN Hao,WANG Chunmei.Application of morphological wavelet in surface crack defect detection of medium plates[J].Journal of University of Science and Technology Beijing,2006,28(6):591-594. |
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| Authors: | WU Guifang XU Ke XU Jinwu YANG Chaolin SUN Hao WANG Chunmei |
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| Abstract: | It is difficult to extract crack defects from a defect image by traditional detection techniques, for the image of surface crack defects on a medium plate is influenced greatly by background noise and oxidized scale. Morphological wavelet, which combines the advantages of wavelet decomposition with mathematical morphology, was introduced to decompose the defect image and detect catastrophe signals. According to the similar linear character of crack defects in shape, the crack defects can be accurately extracted from the image. Experimental results show that the morphological wavelet transform presented here is more effective than other techniques for the detection of surface crack defects of a medium heavy plate. |
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| Keywords: | medium plate surface crack defect detection morphological wavelet |
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