| 一种指纹特征点信息的表示方法 |
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| 引用本文： | 段玉波,;佟金鹰,;刘丽丽.一种指纹特征点信息的表示方法[J].佳木斯工学院学报,2009(1):4-6. |
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| 作者姓名： | 段玉波 ;佟金鹰 ;刘丽丽 |
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| 作者单位： | [1]大庆石油学院电气信息工程学院,黑龙江大庆163318; [2]绥化市西直南二路移动公司网络部,黑龙江绥化152000 |
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| 摘 要： | 指纹图像经细化后并提取特征点，把特征点的信息构成特征向量作为指纹特征模板。本文提出了一种有效的指纹特征信息的表示方法，把中心点作为参照点，利用中心点和特征点之间的距离和纹线数与图像的旋转和平移无关的特性来标记特征点。通过结果分析，此方法占用的空间相对要小。
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| 关 键 词： | 特征信息 直线插补 纹线数 特征编码 |
An Expression of Fingerprint Feature Information |
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| Affiliation: | DUAN Yu-bo, TONG Jin - ying, LIU Li - li (1 .School of Electricity and Information Engineering, Daqing Petroleum Institute,Daqing 163318, China; 2. Network Department, Suihua Mobile Communication Company, Suihua 152000, China) |
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| Abstract: | Extract the feature of fingerprint image after thinning the image. Then, take the feature vector composed by the feature information as the feature template. This paper presents an effective expression of fingerprint feature information, taking core as the reference point, and masks the feature information according to the characteristic that the distance and ridge numbers between core and feature point are independent of the rotation and displacement of fingeiprint image. Analysis result shows that this expression method takes smaller space. |
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| Keywords: | feature information line interpolation ridge number feature coding |
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