用于扫刮式指纹传感器的图像重组算法  

Image Reconstruction Algorithm For Swiping Finger Print Sensor

作　　者：安超[1] 张弘[1] 李敏[2] 

机构地区：[1]北京理工大学化工与环境学院自动化教研室,北京100081 [2]华中科技大学图象识别与人工智能研究所,武汉430074

出　　处：《计算机与数字工程》2006年第10期49-52,共4页Computer & Digital Engineering

摘　　要：介绍了一种适用于扫刮式指纹传感器的图像重组算法。扫刮式指纹传感器采集得到的是彼此交迭的条状指纹图像,这些指纹图象需要通过图象重组得到完整的没有交迭的指纹图象。本文提出的算法通过分析定位象素点的图像信息,可以计算扫刮方向上手指移动距离以及垂直于扫刮方向上的偏移,并由此获得不失真的重组指纹图像。In this paper we describe an algorithm for reconstructing fingerprint images gotten from swipe based finger print sensor. A serial overlapping image strip of the whole finger is acquired by swiping the finger across the sensor line. To acquire a whole fingerprint image without overlapping, fingerprint reconstruction techniques should be adopted. The algorithm proposed here analyzes reference pels from the image strip, computes the swipe distance and sideway swipe distances, and then obtains the fully reconstructed images of the finger without distortion

关 键 词：扫刮式指纹传感器 滑动窗口 指纹图像重组 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]