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
中图分类号:
陈新武;刘 玮;龚俊斌;田金文. 基于Contourlet-S变换的纹理图像检索系统[J]. 计算机工程, 2009, 35(16): 211-213.
CHEN Xin-wu; LIU Wei; GONG Jun-bin; TIAN Jin-wen. Texture Image Retrieval System Based on Contourlet-S Transform[J]. Computer Engineering, 2009, 35(16): 211-213.