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首页> 外文期刊>International Journal of Electrical and Computer Engineering >Ordinal Measure of Discrete Cosine Transform Coefficients and its Application to Fingerprint Matching
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Ordinal Measure of Discrete Cosine Transform Coefficients and its Application to Fingerprint Matching

机译:离散余弦变换系数的有序度量及其在指纹匹配中的应用

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Recently, the identification system is not limited in using an ID and personal identification number (PIN) but also in using biometriccharacteristics.One of biometric characteristics that has been widely used is fingerprint.This paper proposes a fingerprint matching algorithms using ordinal measure of DCT coefficient. The ordinal measure of DCT coefficient is generated from DCT blocks with size 8x8 pixels. Matching level was determined by computing the Minkowski distance between features of input fingerprint image and fingerprint images in the database. The simulations were accomplished using 128 fingerprints that have been normalized, from which as many as 1024 genuine attempts and 15360 impostor attempts were generated. The proposed algorithms achievedan Equal Error Rate (EER) at threshold 0.3. At the EER, it resulted in FAR value of 0.82%, and FRR value of 78.41% respectively.The low value of FAR showed that the system wasconsiderably secure.
机译:近年来,识别系统不仅限于使用ID和个人识别码(PIN),而且还使用生物识别特征。广泛使用的生物识别特征之一是指纹。本文提出了一种使用DCT系数的有序度量的指纹匹配算法。 。 DCT系数的序数度量是从8x8像素大小的DCT块生成的。通过计算输入指纹图像的特征与数据库中指纹图像之间的Minkowski距离来确定匹配级别。使用已归一化的128个指纹完成了仿真,由此产生了1024次真实尝试和15360次冒名顶替者尝试。所提出的算法在阈值0.3处实现了均等错误率(EER)。 EER的FAR值分别为0.82%和FRR的78.41%。FAR的低值表明系统是相当安全的。

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