计算机工程 ›› 2009, Vol. 35 ›› Issue (16): 211-213.doi: 10.3969/j.issn.1000-3428.2009.16.076

• 图形图像处理 • 上一篇    下一篇

基于Contourlet-S变换的纹理图像检索系统

陈新武1,2,刘 玮2,龚俊斌2,田金文2   

  1. (1. 信阳师范学院物理电子工程学院,信阳 464000;2. 华中科技大学多谱信息处理技术国家重点实验室,武汉 430074)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-08-20 发布日期:2009-08-20

Texture Image Retrieval System Based on Contourlet-S Transform

CHEN Xin-wu1,2, LIU Wei2, GONG Jun-bin2, TIAN Jin-wen2   

  1. (1. College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000;2. State Key Laboratory for Multi-Spectral Information Processing Technology, Huazhong University of Science Technology, Wuhan 430074)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-08-20 Published:2009-08-20

摘要: 针对基本轮廓波变换纹理图像检索系统检索率较低的问题,提出一种基于Contourlet-S变换的纹理图像检索系统。其中采用的特征向量由Contourlet-S变换域各子带内系数的能量和标准偏差连接而成,相似度度量标准使用Canberra距离。实验结果表明,采用相同的系统结构和分解结构参数,在基本相同的检索时间内,Contourlet-S检索系统比基本轮廓波检索系统具有更高的检索率。

关键词: Contourlet-S变换, 纹理图像检索系统, Canberra距离, 检索率, 检索时间

Abstract: Aiming at the problem of low retrieval rate of texture image retrieval system based on basic contourlet transform, a texture image retrieval system based on Contourlet-S transform is proposed. The feature vectors in the system are constructed by cascading the energy and standard deviation of every sub-band in Contourlet-S domain, and the similarity metric is Canberra distance. Experimental results show the retrieval rate of Contourlet-S transform based image retrieval system under the same system structure and decomposition parameter is superior to that of the original contourlet transform with almost same retrieval time.

Key words: Contourlet-S transform, texture image retrieval system, Canberra distance, retrieval rate, retrieval time

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