一种基于捕捉有效域的快速指纹特征提取算法  

An Efficient Fingerprint Extract Algorithm Based on Effective Area Capturing

作　　者：冯涛[1] 张士伟[2] 刘其真[3] 

机构地区：[1]上海第二工业大学,上海200041 [2]上海师范大学中新科技管理学院,上海200233 [3]复旦大学计算机科学与工程系,上海200433

出　　处：《中国图象图形学报》2008年第10期1857-1860,共4页Journal of Image and Graphics

摘　　要：由于指纹识别技术具有很高的实用性和可行性,因此是一种理想的身份认证技术。但目前的指纹特征提取算法却很难保证同时具有可靠性和高效率。为了准确快速地提取指纹特征,在进行有效域捕捉,并结合脊线跟踪的基础上,提出了一种快速的指纹细节提取方法。该方法先通过核心点的检测来确定有效的指纹面积,并且在处理过程中降低了对图像增强的依赖;然后对确定了指纹面积的图像进行脊线跟踪。实验结果表明,该方法不仅有较高的可靠性和效率,而且能较好地平衡它们两者的矛盾。Finger print recognition technology is practical and feasible. It is a valuable ID recognition technology. The algorithm we commonly use now cannot provide reliability and high efficient at the same time, Based on effective area capturing and ridges tracing, this article advances an efficient fingerprint extraction algorithm. To capture the effective area and lower down the dependence to the image quality, we first cheek the core point. Then the tracing ridge is used to extract strange points. Experimental results show that this algorithm can balance the practicality and feasibility at the same time.

关 键 词：指纹识别 有效域 脊线追踪 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]