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DOI:
计算机系统应用英文版:2012,21(6):75-80,131
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基于提升小波的图像检索算法
(西安理工大学 理学院应用数学系,西安 710054)
Image Retrieval Algorithm Based on Lifting Wavelet
(Department of Applied Mathematics, School of Science, Xi'an University of Technology, Xi'an 710054)
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Received:September 26, 2011    Revised:October 30, 2011
中文摘要: 提升小波具有高效性和多分辨率等优点,本文提出了基于提升小波的图像检索算法。该算法首先对图像进行提升小波变换,得到每层的低频子图像和高频子图像;然后分别提取低频子图像的形状特征和高频子图像的纹理特征;最后通过计算特征向量之间的欧式距离,检索出相似的图像。实验结果表明,此算法的检索效率高于其他算法,具有一定的优越性和通用性。
Abstract:In this paper, an image retrieval algorithm is proposed based on lifting wavelet, for it has many advantages such as high efficiency and resolution. Firstly, through lifting wavelet transform of the image, we can get each layer of the low-frequency sub-image and high-frequency sub-images. Then, shape feature of low-frequency sub-image and texture feature of high-frequency sub-images can be extracted. Finally, the Euclidean distance is calculated between the feature vectors and retrieved similar images. Experimental results show that the retrieval efficiency of this algorithm is better than other algorithms. It has advantages and versatility.
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基金项目:国家自然科学基金(61075007);校基金(108-210901)
引用文本:
王军锋,舒彬,陈惠惠.基于提升小波的图像检索算法.计算机系统应用,2012,21(6):75-80,131
WANG Jun-Feng,SHU Bin,CHEN Hui-Hui.Image Retrieval Algorithm Based on Lifting Wavelet.COMPUTER SYSTEMS APPLICATIONS,2012,21(6):75-80,131