| 结合方差及方差梯度的指纹图像改进分割算法 |
| |
| 引用本文： | 蔡秀梅,范九伦,高新波,张永健.结合方差及方差梯度的指纹图像改进分割算法[J].计算机工程与应用,2010,46(1):177-179. |
| |
| 作者姓名： | 蔡秀梅 范九伦 高新波 张永健 |
| |
| 作者单位： | 1.西安邮电学院 信息与控制系，西安 710061 2.西安电子科技大学 电子工程学院，西安 710071 3.西安电力电子技术研究所，西安 710061 |
| |
| 基金项目： | 国家自然科学基金No.60572133~~ |
| |
| 摘 要： | 通过对基于方差及方差梯度的指纹图像分割算法的分析，提出一种改进算法。将指纹图像分块，结合各块方差及其梯度信息，自适应选取两个分割阈值，分割后去除孤立图像块，得到最终分割结果。实验表明，该算法简单快速，能够更有效地去除图像中的局部模糊区域，同时更完整地保留有效指纹区。
|
| 关 键 词： | 指纹分割 方差 方差梯度 |
| 收稿时间： | 2009-1-8 |
| 修稿时间： | 2009-3-17
|
Improved algorithm for fingerprint segmentation based on variance and its gradient |
| |
| CAI Xiu-mei,FAN Jiu-lun,GAO Xin-bo,ZHANG Yong-jian.Improved algorithm for fingerprint segmentation based on variance and its gradient[J].Computer Engineering and Applications,2010,46(1):177-179. |
| |
| Authors: | CAI Xiu-mei FAN Jiu-lun GAO Xin-bo ZHANG Yong-jian |
| |
| Affiliation: | 1.Department of Information and Control，Xi’an Institute of Post and Telecommunications，Xi’an 710061，China 2.School of Electronic Engineering，Xidian University，Xi’an 710071，China 3.Xi’an Power Electronics Research Institute，Xi’an 710061，China |
| |
| Abstract: | After the analysis of the fingerprint segmentation algorithm based on variance and its gradient,an improved algorithm is proposed.The fingerprint image is partitioned into blocks,and then the variance and its gradient of each block are calculated. Then two thresholds are computed adaptively.After segmentation,the isolated image blocks are wiped off to get the segmented result.The experimental results show that this algorithm runs quickly and can be programmed easily.It can remove the fuzzy areas more effect... |
| |
| Keywords: | fingerprint segmentation variance gradient of variance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《计算机工程与应用》浏览原始摘要信息 |
|
点击此处可从《计算机工程与应用》下载全文 |
