This paper analyzed the dealing process of distilling the fingerprint image FBI feature, composed the point eigenvector and field eigenvector, brought forward the twice-told fingerprint matching arithmetic based on the FBI feature and implement method.

• 文章分析了提取指纹图像FBI细节点的处理过程,构建了点特征向量和域特征向量,提出了基于FBI细节点的二次指纹配准算法及实现方法。