摘要
基于生物特征的身份认证方法是当前信息安全技术领域的热点.论文在分析当前各种生物特征认证方法的基础上,针对其应用在智能手机上存在的问题,提出一种基于动态手势进行身份认证的算法EI-DTW.算法结合放宽端点限制和提前终止的动态时间规整(DTW)高效算法,取消了手势特征匹配时的端点对齐限制,提高了认证精度,并通过限定弯折斜率和提前终止策略进一步提高了认证效率.
Biometric authentication is a hot topic in the current information security field .Based on the analysis of the current biometric authentication methods and the problems of their applications on smart phones ,we propose an identity authentication method based on a dynamic gesture matching algorithm named EI-DTW ,which combines relaxation of the endpoints restriction and early termination of authentication based on dynamic time warping （DTW）algorithm .The experimental results show our algorithm EI-DTW enhances the authentication accuracy by canceling the endpoint alignment restriction on gesture matching ,and improves the authentication efficiency by the early termination strategy and limiting the warp slope .
出处
《电子学报》
EI
CAS
CSCD
北大核心
2014年第9期1857-1862,共6页
Acta Electronica Sinica
基金
国家自然科学基金(No.61173122)
湖南省自然科学基金重点(No.12JJ2038)
湖南省自然科学基金青年基金(No.09JJ6102)
