摘要
本文先讨论了Poincare索引法、点方向一致性度量法和方向均值差异法确定指纹中心的特点 ,给出了改进算法。然后提出了块方向图搜索法和综合法两种中心定位新方法。实验表明 ,改进方法较前为优 。
This paper does some researches on several fingerpint core automatic seek arithmetics,such as the Poincare Index method,the point direction consistency measurement and the direction average difference method.We also give some improved methods.And then we give two new methods(the block direction tracing arithmetic and the synthesis method).The experiments show that the improved methods are better and the new methods can be used to finding the core of fingerprint efficiently.
出处
《计算机应用与软件》
CSCD
北大核心
2004年第3期10-13,共4页
Computer Applications and Software
基金
江苏省高校自然科学研究项目 (编号 0 2KSD52 0 0 0 5)
