国防科技大学学报2011，Vol.35Issue(5)：161-166,6.
一种改进的指纹图像局部方向场匹配方法
An Improved Local Orientation Field Matching Method on Fingerprint Images
摘要
Abstract
Fingerprint orientation field describes the essential texture features in a fingerprint impression, including shape, structure and direction. A representation scheme is introduced to describe the local orientation field around a minutia, so as to describe and discriminate different minutiae based on the neighbor texture information. On poor-quality fingerprint images, especially when heavy nonlinear distortion exists, minutia direction is no longer reliable enough. As a result, it is not effective to align two local orientation field images with a minutiae pair as the reference. An improved alignment and matching method of local orientation field images is proposed, which can achieve much better performance and improve the matching accuracy more clearly. Experimental results show that the proposed method can evaluate the resemblance between two minutiae more effectively.关键词
指纹识别/指纹方向场/局部对齐/局部匹配/指纹识别竞赛Key words
fingerprint identification/ fingerprint orientation field/ local alignment/ local matching/ fingerprint verification competition分类
信息技术与安全科学引用本文复制引用
陈晖,舒欣,殷建平,祝恩..一种改进的指纹图像局部方向场匹配方法[J].国防科技大学学报,2011,35(5):161-166,6.基金项目
国家自然科学基金资助项目(60603015,60970034) （60603015,60970034）
高等学校全国优秀博士学位论文作者资助项目(2007B4) （2007B4）
湖南省教育厅资助科研项目 （）
