摘要
针对指纹识别过程中指纹匹配算法的准确性以及识别效果等问题,结合计算几何中Delaunay三角剖分方法的特点,将其引入指纹匹配处理,提出一种基于三角网格的指纹匹配方法。该方法通过对细节点的拓扑结构进行三角划分,得到三角形网格。最后利用三角形的几何不变性按照匹配与配型两个步骤进行指纹识别。经实验验证该方法是一种行之有效的指纹匹配方法,有效地提高了最终的识别效果。
According to the accuracy and recognizing effect in the proccess of fingerprint match, and combining with the character of Delaunay trianglation, DT is used in the fingerprint match proccess. The algorithm divides the triangulation according to the topological structure and gains triangle gridding, and recognizes the fingerprint using two steps of matching and match model based on the maintanence of geometry. After test ,this algorithm is an effective fingerprint match method and advances recognizing effect.
出处
《济南大学学报（自然科学版）》
CAS
2008年第3期259-262,共4页
Journal of University of Jinan(Science and Technology)
基金
国家自然科学基金(60573065)
济南大学科研基金(Y0613)
