An Optimal Approach to Aligning On-line Handwritten Signatures

摘要：

On-line handwritten signature aligning is crucial in verification. This paper deals with this aligning as an optimization problem. By transforming the squared Euclidean distance based DTW distance in terms of geometric transformations including rotation, scaling and translation, corresponding optimal objective functions are formulated and solved in closed form.Subsequently, an iterative optimization procedure,named DTWOA, is proposed as a systematic aligning approach. Experimental results conducted on SVC2004 dataset show that DTWOA converges rapidly, and the standard deviation of the optimal DTW distances is much smaller and smoother than the original, which manifests the availability of our work.

作者: Huichuan Duan Xiyu Liu Hong Liu

作者单位: School of Information Science and Engineering,Shandong Normal University,Jinan,China School of Management and Economics,Shandong Normal University,Jinan,China

会议类型: 国际会议

会议名称: 2008 IEEE International Symposium on IT in Medicine and Education(2008信息技术在医学和教育中的应用国际研讨会)(ITME 2008)

会议地点: 厦门

会议语种:英文

页码: 126-131

在线出版日期: 2008-12-12（万方平台首次上网日期，不代表论文的发表时间）