旋转不变匹配在指纹识别中的应用  

Application of rotation-invariant matching in fingerprint identification

作　　者：高印寒[1] 杨晓璐[1] 王淑文[2] 吕学涛[1] 杨柳松[1] 刘丽萍 

机构地区：[1]吉林大学测试科学试验中心,吉林长春130022 [2]长春大学机械工程学院,吉林长春130022 [3]吉林省物资集团有限责任公司,吉林长春130022

出　　处：《传感器与微系统》2006年第1期79-81,共3页Transducer and Microsystem Technologies

摘　　要：先进的边检系统对指纹识别的快速性和准确性要求较高。由于扫描的指纹图像和库存指纹在方向和大小方面并不完全相同,给正确快速的识别带来了困难。将旋转不变模板应用于指纹识别,利用指纹图像的方向编码直方图与库存指纹图像进行匹配来识别指纹,可迅速计算出扫描指纹与库存指纹的不相似度,如果此不相似度小于一个阈值,可认为是指纹匹配。The rapidity and accuracy is the essential requirement of the advanced frontier inspection. It is difficult to identify the fingerprint rapidly and accurately because the difference of the orientation and the size between scaned fingerprint image and storage fingerprint. The method applies rotation-invariant template matching for fingerprint identification, which using orientation code histogram and orientation code matching to identify fingerprint. It can compute the disaffinity rapidly between scaned fingerprint image and storage fingerprint, if the disaffinity is less than the value ,the fingerprint is matching.

关 键 词：指纹识别 旋转不变模板匹配 智能边检系统 方向编码 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]