摘要
指纹图像预处理是自动指纹识别系（AFIS）关键步骤，它的好坏直接影响到整个系统的速度和准确率．在对现有指纹图像算法进行比较的基础上，详细介绍了方向滤波算法，实现了方向滤波器对指纹图像的预处理，取得了较好的效果并在实验结果的基础上，提出了改进的意见．
Fingerprint image preprocessing is a key step of AFIS, and its quality has a direct effect on the speed and the accuracy of the whole system. Based on a comparison of the current fingerprint image algorithms, this article details with the algorithm of direction filter, realizes the preprocessing of the directionfilter for the fingerprint image, and achieves an ideal effect. On the basis of the experimental results, the paper puts forward some suggestions for its improvement.
作者
杨小青
杨浩
何为
YANG Xiao-qing, YANG Hao, HE Wei（ 1. College of Engineering, Chongqing University, Chongqing 400044, China 2. Chongqing University of Science and Technology, Chongqing 400050, China）
出处
《西南大学学报：自然科学版》
CAS
CSCD
北大核心
Journal of Southwest Agricultural University
关键词
图像预处理
方向滤波
滤渡器
指纹识别
Image preprocessing
Block direction image filter
Filter
Fingerprint recognition
