一种复合的指纹中心点定位算法  

A compound algorithm for locating the core point of fingerprint

作　　者：郑晓[1] 马义德[1] 袁树林[1] 陈锐[1] 

机构地区：[1]兰州大学信息科学与工程学院,兰州730000

出　　处：《微计算机信息》2010年第9期177-178,共2页Control & Automation

摘　　要：准确地进行指纹中心点定位,对指纹分类和匹配有重要意义。本文提出一种复合的指纹中心点定位算法,在指纹分块基础上,利用方向能量进行初步搜索,再用块的庞加莱算法进行二次定位。该算法快速,简单,鲁棒性好。Locating the core point of fingerprint accurately is of great importance for fingerprint classification and matching.This paper presents a compound algorithm for locating the core point of fingerprint which searches fingerprint images first according to the directional energy on the base of fingerprint blocking and then locates the core point using the block-based Poincare index analysis.The proposed algorithm is effective, simple and robust to noise.

关 键 词：指纹中心点 方向能量 块庞加莱指数 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]