印鉴识别相似度的计算框架

印鉴识别是计算机图像处理和模式识别技术的重要应用．基于模板匹配提出了一种印鉴识别相似度的算法框架，并应用于实际的印鉴识别过程．修正了经典相似度公式不能直接应用于实际的印鉴识别系统的问题，将差异像素点的特征信息加入到该算法中，使真假印鉴与预留印鉴匹配后的相似度结果很好地分布在阈值的两边．同时，为了使算法更加可靠和高效，引入多测度的相似度进行印鉴识别．实验结果表明，在不同层次的匹配级别上使用不同测度的相似度可以提高算法效率，而由多种相似测度综合而成的多测度相似度具有很强的区分性和鲁棒性．

Algorithm of Seal Imprint Verification Similarity

Seal imprint verification is an important application in the field of image processing and pattern recognition Based on the method of template match, an algorithm of seal imprint verification similarity is presented in this paper In the algorithm, a modification is made by adding some feature information of dissimilar pixels to the approach of the traditional image similarity which is unable to be applied directly in the seal imprint verification so that the match result seems to be divided by the threshold properly The multi-measure similarity has been also introduced into the algorithm Experimental results indicate that the way of using different similarity in different match level can significantly improve the efficiency of the algorithm, while the integrated similarity based on the multi-measure and the new modification makes the algorithm more effective and robust