小波变换技术在指纹图像预处理中的应用  

Application of the wavelet transform in preprocessing the fingerprint image

作　　者：马君[1] 

机构地区：[1]西安财经学院计算机与科学系 陕西西安710061

出　　处：《西安电子科技大学学报》2005年第4期653-656,共4页Journal of Xidian University

基　　金：陕西省教育厅专项科研计划项目(03JK172)

摘　　要：介绍了小波变换技术,并采用小波分解与重构方法对指纹图像进行小波压缩、去噪和增强处理.实验表明,应用小波变换技术对指纹图像进行处理能够获得较满意的结果.The fingerprint is regarded as a kind of biological characteristic of human beings. It has the advantages of uniqueness stability, being able to gather, never being able to be from the subject, etc. It has already become the effective means that the personal identity has discerned. In this paper, the wavelet transform is introduced, and then based on wavelet decomposition and reconstruction, the fingerprint image compressing,getting rid of noise and extracting features are fulfilled. Experimental results have verified that this method is effective in preprocessing fingerprint images.

关 键 词：指纹图像 小波变换 小波分解 小波重构 

分 类 号：TN911.73[电子电信—通信与信息系统]