一种时频场指纹增强技术与三阶样条曲线拟合匹配算法的研究

Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412) Pub Date : 2003-05-20 DOI:10.1109/IMTC.2003.1207916

Yuanning Liu, Senmiao Yuan, Xiaodong Zhu

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引用次数: 5

摘要

本文提出了一种快速指纹增强算法。为了增强指纹图像，该算法首先估计指纹图像的局部脊方向和频率，然后对指纹图像应用均匀对称Gabor滤波器，自适应提高输入指纹图像脊和沟结构的清晰度。同时，给出了一种基于三阶样条曲线拟合的曲线点匹配算法，并给出了一些定义和引理。结果表明，该算法具有良好的速度和精度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A time-frequency field fingerprint enhancement technology and three-order spline curve fitting matching algorithm research

We present a fast fingerprint enhancement algorithm in the paper. In order to enhance the fingerprint images, the algorithm firstly estimate local ridge orientation and frequency of the fingerprint images and then apply an even-symmetric Gabor filter for fingerprint images, adaptively improve the clarity of the ridge and the furrow structures of input fingerprint images. At the same time, this paper gives out an algorithm which is based on three-order spline curve fitting curve of point matching, creation of some definitions and lemmas. The results indicate that the algorithm shows out excellent features in good velocity and precision.

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来源期刊

Proceedings of the 20th IEEE Instrumentation Technology Conference (Cat. No.03CH37412)

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