In local vector match method, we add the line numbers and the dispersion of direction angle between the center point and near minutiae point.We also add the direction angle of the center point.

• 在局部向量特征匹配法中加入了中心点与邻近特征点的纹线数，方向角差，中心点的方向角等特征信息，提高了特征匹配的准确性。