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
出处
《计算机与数字工程》
2006年第10期49-52,共4页
Computer & Digital Engineering
关键词
扫刮式指纹传感器
滑动窗口
指纹图像重组
swipe based fingerprint sensor, slide window ,fingerprint reconstruction