结合滤波器选择和相位信息的统计纹理图像检索  

Statistical texture image retrieval combining filter selection and phase information

作　　者：曲怀敬[1] 李健[1] 吴延荣[1] 许鸿奎[1] 曹建荣[1] 

机构地区：[1]山东建筑大学信息与电气工程学院,济南250101

出　　处：《计算机应用研究》2014年第12期3894-3897,共4页Application Research of Computers

基　　金：山东省科技计划资助项目(2013GGX10131);济南市高校院所自主创新项目(201202002);山东建筑大学博士基金资助项目(XNBS0911)

摘　　要：为了在复变换域利用方向和相位信息有效地改善图像检索的性能,基于金字塔双树方向滤波器组(PDTDFB),提出一种结合滤波器选择和相对相位的统计纹理图像检索方法。将复方向子带幅值系数进行统计建模,并通过改进的最大似然估计方法确定其分布参数。基于一种混合建模的检索方法,将所设计的四种钻石状滤波器的性能通过对Vis Tex和Brodatz纹理库的检索结果进行比较。结合相对相位特征的互补性进行纹理图像的检索。实验结果表明,所提出的方法有效地提高了纹理图像的平均检索率。In order to improve effectively the performance of the image retrieval using the direction and phase information in complex transform domain,this paper proposed a statistical texture image retrieval method,which combined filter selection and relative phase,and based on the pyramid dual-tree directional filter bank（ PDTDFB）. Firstly,this method modeled statistically the magnitude coefficients of complex directional subbands,and estimated their distribution parameters employing an improved maximum likelihood approach. Then,it compared the performances of four designed diamond filters using the retrieval results for the Vis Tex and Brodatz texture databases based on a hybrid modeling retrieval approach. Finally,it retrieved the texture images using the complementary of the relative phase features. The experimental results show that the proposed method can effectively improve the average retrieval rate of the texture images.

关 键 词：金字塔双树方向滤波器组 钻石状滤波器 相对相位 统计建模 纹理图像检索 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]