| 基于方向小波变换的镁熔液弱小气泡检测 |
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| 引用本文： | 冯在东,许四祥,孙杰,刘腾飞.基于方向小波变换的镁熔液弱小气泡检测[J].材料导报,2012,26(6):146-149. |
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| 作者姓名： | 冯在东 许四祥 孙杰 刘腾飞 |
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| 作者单位： | 安徽工业大学机械工程学院,马鞍山,243032 |
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| 基金项目： | 国家自然科学基金(51044001);安徽省自然科学基金(11040606M104) |
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| 摘 要： | 运用方向小波的多尺度和多方向变换,对高温镁熔液表面弱小气泡进行检测。先对原始图像进行方向小波变换重构高频,抑制背景杂质,再作帧差和迭代阈值分割处理,最后运用数学形态学检测到弱小气泡,并将结果与传统小波检测进行比较。实验结果表明方向小波变换方法是有效的,而且方向小波更符合图像的方向特点,能够较好地检测出复杂背景中的弱小气泡。
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| 关 键 词： | 方向小波变换 弱小气泡 迭代阈值 数学形态学 |
Detection of Weak and Dim Bubble in Magnesium Melt Based on Directional Wavelet Transform |
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| FENG Zaidong
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XU Sixiang
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SUN Jie
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LIU Tengfei.Detection of Weak and Dim Bubble in Magnesium Melt Based on Directional Wavelet Transform[J].Materials Review,2012,26(6):146-149. |
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| Authors: | FENG Zaidong XU Sixiang SUN Jie LIU Tengfei |
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| Affiliation: | (Mechanical Engineering Institute,Anhui University of Technology,Ma’anshan 243032) |
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| Abstract: | The detection of the weak and dim bubble in magnesium melt based on the multi-scale and multi-directional advantages of directional wavelet transform were investigated.Original images were decomposed by directional wavelet transform in order to get the high frequency coefficients and suppress background.Then,iterative threshold and mathematical morphology were used to get the target.The difference between traditional and directional wavelet transform was compared.The results indicate that the proposed method is effective.Directional wavelet transform can meet the image direction character better,it can detect weak and dim target in complex background. |
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| Keywords: | directional wavelet transform weak and dim bubble iterative threshold mathematical morphology |
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