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基于模糊技术的指纹识别预处理

On the fuzzy technology-based fingerprint processing
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摘要 提出一套基于方向滤波与模糊数学方法的指纹图像预处理算法。给出了一种基于16域的自适应滤波器,很好的增强了指纹图像的清晰度;针对以往求取方向图的不足,给出了一种基于16方向的改进算法;该方法取得了良好的效果,保留了指纹纹线的关键信息,为下一步的特征提取工作打下了良好的基础. A preprocessing and minutiae extraction algorithm is put forth with experiment result.An improved method based on 16 origin local self adaptive enhancing filter is proposed, the fingerprint images are enhanced very well a .An improved method based on the 16 direction is proposed to estimate the orientation field of fingerprint image.What is more ,this paper implements the processing of fingerprint images ,which gets perfect effect, keeps the crucial fingerprint information, and lays a sound foundation for feature extraction.
出处 《微计算机信息》 北大核心 2006年第12S期231-233,共3页 Control & Automation
基金 国务院信息化办公室电子政务信息安全试点重庆市<信息安全等级保护试点>项目(200402008)
关键词 自适应滤波 预处理 模糊增强 serf-adaptive filter,Preprocessing,fuzzy enhance
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