自动指纹识别系统一般包括指纹图像采集，预处理，特征提取和比对。

Automatic fingerprint identification system includes fingerprint image acquisition, image preprocessing, minutia extraction and minutia matching.

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论文的第五章介绍了指纹图像采集设备及指纹识别开发包，描述了指纹识别功能模块的具体实现。

In chapter two of this dissertation, the fingerprint recognition technique is introduced, the development of fingerprint recognition, current situation, and the future is described;

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自动指纹识别系统主要包括以下几个步骤：指纹图像采集、指纹图像前处理、细节特征提取、指纹图像匹配。

The fingerprint recognition system mainly concludes the following steps: collection of fingerprints, pre-processing of fingerprint image, minutiae extraction and fingerprint matching.

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