期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
基于方向图分布及中心点信息的指纹分类算法 被引量:1
1
作者 王晓莉 齐文钊 刁海南 《微电子学与计算机》 CSCD 北大核心 2008年第3期25-27,31,共4页
在深入研究现有指纹分类算法的基础上,提出了一种基于方向图及中心点信息的指纹分类算法.不同于以往利用core点和delta点进行分类,该算法根据指纹图像的中心点位置对方向图进行区域分割,通过各区域方向码之间的计算近似实现方向滤波,由... 在深入研究现有指纹分类算法的基础上,提出了一种基于方向图及中心点信息的指纹分类算法.不同于以往利用core点和delta点进行分类,该算法根据指纹图像的中心点位置对方向图进行区域分割,通过各区域方向码之间的计算近似实现方向滤波,由方向滤波值进行分类.指纹图像大致可分为拱型、左箕型、右箕型和漩涡型4种.该算法为匹配算法提供了指纹类型信息,实验结果表明取得了较好的效果. 展开更多
关键词 指纹图像 方向图 中心点 方向图分割
下载PDF
Integrated Method of Recognizing Huge Target
2
作者 王文会 《Journal of Beijing Institute of Technology》 EI CAS 2001年第4期423-428,共6页
An integrated novel method of recognizing huge target is described that combines some relatively mature image processing techniques such as edge detection, thresholding, morphology, image segmentation and so forth. Af... An integrated novel method of recognizing huge target is described that combines some relatively mature image processing techniques such as edge detection, thresholding, morphology, image segmentation and so forth. After thresholding the edge image obtained by using Sobel operator, erosion is firstly used to reduce noise and extrusive pixels; then dilation is used to expand some separated pixels into various regions, after that the image segmentation technique is utilized to distinguish the target region with a criterion. The location of the target is also offered. Each technique adopted herein seems not complicated at all, the experimental results demonstrate the efficiency of the combination of these techniques. It is its high computational speed and remarkable robustness resulting from its simplicity that make the method promise to be applied in practical problems requiring real time processing. 展开更多
关键词 object recognition edge detection MORPHOLOGY image segmentation direction detection
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部