Selecting a Reference High Resolution for Fingerprint Recognition Using Minutiae and Pores

Selecting a Reference High Resolution for Fingerprint Recognition Using Minutiae and Pores
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选择使用细节和毛孔进行指纹识别的参考高分辨率

DOI:
10.1109/tim.2010.2062610
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发表时间:
2011-03
影响因子:
5.6
通讯作者:
Luo, Nan
Luo, Nan
中科院分区:
工程技术2区
文献类型:
--
作者:
Liu, Feng;Zhang, David;Lu, Guangming;Zhao, Qijun;Luo, Nan

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高分辨率的自动指纹识别系统(AFRS)提供了更高的安全性,因为它们能够利用3级特征,如毛孔,这在低分辨率(<; 500-dpi)图像中不可用。影响数字指纹图像质量以及AFRS的成本、互操作性和性能等问题的主要参数之一是图像分辨率的选择。在本文中,我们确定了最佳分辨率AFRS使用两个最具代表性的指纹特征:细节点和毛孔。我们首先设计了一种多分辨率指纹采集设备,可以采集多种分辨率的指纹图像,并以固定的图像尺寸采集各种分辨率的指纹。然后,我们进行了理论分析,以确定所需的最低分辨率的指纹识别使用细节和毛孔。在对我们收集的指纹图像进行实验并对指纹图像中必须保留的细节和毛孔的比例应用三个要求后,我们建议参考分辨率为800 dpi。随后的测试进一步证实了拟议的参考分辨率。
High-resolution automated fingerprint recognition systems (AFRSs) offer higher security because they are able to make use of level-3 features, such as pores, that are not available in lower resolution ( <; 500-dpi) images. One of the main parameters affecting the quality of a digital fingerprint image and issues such as cost, interoperability, and performance of an AFRS is the choice of image resolution. In this paper, we identify the optimal resolution for an AFRS using the two most representative fingerprint features: minutiae and pores. We first designed a multiresolution fingerprint acquisition device to collect fingerprint images at multiple resolutions and captured fingerprints at various resolutions but at a fixed image size. We then carried out a theoretical analysis to identify the minimum required resolution for fingerprint recognition using minutiae and pores. After experiments on our collected fingerprint images and applying three requirements for the proportions of minutiae and pores that must be retained in a fingerprint image, we recommend a reference resolution of 800 dpi. Subsequent tests have further confirmed the proposed reference resolution.
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