【摘要】 设计并实现了一个基于PDA的在线签名鉴别系统,用于PDA的开机保护。根据PDA对于内存和运行速度的要求,选择位置和速度作为特征,改进的动态归正方法作为匹配算法,并且在Windows CE操作系统上实现了这一系统。该系统简单而高效,在错误接受率为0%的前提下,错误拒绝率仅为5%。更多还原

【Abstract】 This paper proposes a novel application of an on-line signature verification system to embedded OS, such as personal digital assistant (PDA). When PDA starts up, the system can function automatically for user authorization. As far as is known, PDA holds an embedded OS and a limited memory. Accordingly, it selects modified dynamic time warping (DTW) as a matching algorithm and extracts position and velocity as features. Preliminary experimental result looks encouraging.更多还原