| 一种快速旋转不变图像检索新方法* |
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| 引用本文： | 李杰,王磊,楚恒,朱维乐.一种快速旋转不变图像检索新方法*[J].计算机应用研究,2007,24(4):166-169. |
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| 作者姓名： | 李杰 王磊 楚恒 朱维乐 |
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| 作者单位： | 1. 电子科技大学,电子工程学院,四川,成都,610054
2. 电子科技大学,计算机科学与工程学院,四川,成都,610054 |
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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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国家自然科学基金 |
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| 摘 要： | 提出了一种新型快速旋转不变图像检索新方法.该方法首先对图像进行傅里叶变换和功率谱分解,提取功率谱的扇形区域能量和环形区域能量参数,并将其均值和标准差作为图像纹理特征.然后,利用谱能量分布特征把纹理的主方向旋转到0°,提取旋转后图像的共生矩阵参数和小波分解各子带图像统计参数作为基本特征.利用所提出的特征提取方法在两组分别包含25类单色自然纹理的图像库上进行检索试验.结果表明,该方法获得了良好的检索效果.
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| 关 键 词： | 图像检索 谱分解 小波变换 快速 旋转不变 图像检索 方法 Retrieval Method Image Invariant Rotation Fast 检索效果 结果 试验 图像库 自然纹理 单色 组分 特征提取 利用 基本特征 统计参数 |
| 文章编号： | 1001-3695(2007)04-0166-04 |
| 修稿时间： | 2006-02-28 |
Novel Fast Rotation Invariant Image Retrieval Method |
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| LI Jie,WANG Lei,CHU Heng,ZHU Wei le.Novel Fast Rotation Invariant Image Retrieval Method[J].Application Research of Computers,2007,24(4):166-169. |
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| Authors: | LI Jie WANG Lei CHU Heng ZHU Wei le |
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| Affiliation: | (1.School of Electronic Engineering; 2.School of Computer Science & Engineering, University of Electronic Science & Technology of China, Chengdu Sichuan 610054, China) |
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| Abstract: | A novel fast rotation invariant image retrieval method was proposed.First,Fourier transform and Fourier spectrum decomposition were performed.Sector energy and ring energy of spectrum were extracted and their mean and standard deviation were calculated as texture features.Then,texture image was rotated to place its dominant direction at 0 degree according to the spectral energy distribution.Co-occurrence matrix based features and wavelet statistical features of the rotated image were calculated as basic texture features.Image retrieval using the proposed method showed a high performance conducted with two different texture databases both of which include 25 kinds of monochromatic natural textures. |
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| Keywords: | image retrieval spectrum decomposition wavelet transform |
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