| 基于9/7小波变换的木材纹理频域特征研究 |
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| 引用本文： | 王亚超,薛河儒,多化琼. 基于9/7小波变换的木材纹理频域特征研究[J]. 西北林学院学报, 2012, 0(1): 225-228 |
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| 作者姓名： | 王亚超 薛河儒 多化琼 |
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| 作者单位： | 内蒙古农业大学计算机与信息工程学院;内蒙古农业大学材料科学与艺术设计学院 |
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| 基金项目： | 国家自然科学基金(30960303);内蒙古自然科学基金(2009MS0509) |
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| 摘 要： | 通过利用实数9/7小波变换,对木材纹理进行多尺度分解,利用特征参数分析了木材纹理频率分布特征,比较了针叶材与阔叶材、径向与弦向切面的木材纹理的差异。实验结果表明,利用实数9/7小波变换,分析各子图像能量值的标准差,筛选出木材纹理最佳分解尺度为3,同时还发现小波能量分布比例和EHL/ELH值可作为木材纹理方向性参数。
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| 关 键 词： | 木材纹理 9/7小波变换 频域特征参数 |
Frequency Feature Extraction and Analysis of Wood Texture Based on the 9/7 Wavelet Transforms |
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| WANG Ya-chao,XUE He-ru,DUO Hua-qiong. Frequency Feature Extraction and Analysis of Wood Texture Based on the 9/7 Wavelet Transforms[J]. Journal of Northwest Forestry University, 2012, 0(1): 225-228 |
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| Authors: | WANG Ya-chao XUE He-ru DUO Hua-qiong |
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| Affiliation: | 1.College of Computer and Information Engineering,Inner Mongolia Agriculture University.Huhhot,Iner Mongolia 010018,China; 2.College of Material Science and Art Design,Inner Mongolia Agriculture University.Huhhot,Iner Mongolia 010018,China) |
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| Abstract: | Based on the 9/7 wavelet transforms,multi-scale decomposition was conducted on the the wood texture.The frequency distribution features of wood texture were analyzed by using characteristic coefficients.Wood texture differences between coniferous and broad-leaved woods,radial section and tangential section of woods were analyzed.From the results of analyzing the standard deviations of sub-image energies by the 9/7 wavelet transforms,it was found the the optimal decomposition scale for wood texture was 3,and the distribution ratio of subsection energy and EHL/ELH could be used to declare texture direction of wood. |
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| Keywords: | wood texture the 9/7 wavelet transforms feature parameter in frequency domain |
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