一种基于信息融合的指纹特征点提取方法

Fingerprint Minutiae Extraction Method Based on Information Fusion

针对进行指纹图像预处理时产生的伪特征点难以消除的问题,提出了一种基于信息融合的指纹特征点提取方法;该方法首先通过取两种不同预处理方法所获得的指纹特征点集的交集来剔除在指纹图像预处理过程中所产生的伪特征点,然后根据特征点的结构信息来消除原始指纹图像本身所存在的伪特征点;实验结果表明,该方法不仅可以有效地消除指纹图像预处理过程所产生的伪特征点,同时也能消除原始指纹图像中存在的伪特征点。

As the pseudo minutiae arised from fingerprint image preproeessing is difficult to eliminate, a fingerprint minutiae extraction method based on information fusion is proposed. This method firstly eliminates the pseudo minutiae arised from fingerprint image preproeessing by fusing different results of two preprocessing, and then fingerprint itself inherent pseudo minutiae is removed aecording to its structure information. Experimental results show that this method ean effectively eliminate the pseudo minutiae introduced during image preprocessing, and remove the pseudo minutiae caused by image acquisition or quality.