摘要
对自动指纹识别系统的两个重要问题——指纹图像增强和细节匹配进行研究,给出了一种基于频域的指纹图像增强算法。采用一种新的更简单的方法进行指纹图像的校准,使用了初步匹配和全局优化匹配,这样做的好处之一是以较低的计算代价有效地解决了匹配中参照点对的选取问题。
Two important questions of automatic fingerprint identification system-the fingerprint image enhancement and the minutia match are researched. The fingerprint image enhancement algorithm in frequency domain is given. A new simpler approach is adopted to calibrate fingerprint image, which uses the preliminary match and the overall optimal match. One of the benefits is obtaining an effective solution to the selection of reference points in the match through lower calculation cost.
出处
《仪表技术》
2008年第11期61-63,共3页
Instrumentation Technology
