CAJ | 학술논문

根据人民币背面印刷年份作为人民版本识别的特征,进行人民币版本的识别.提取印刷年份过程包括对图像的采集、边缘检测、图像旋转、最小值滤波等预处理,以及采用投影法对印刷年份字符区域的定位.字符区域被提取出来以后,再使用八向模板匹配的方法,使待测样本与模板样本逐一比较,计算它们的相似度,与待测样本相似度的最大模板样本的版本作为待测样本的版本.采用100张99版和100张05版人民币图像作为样本进行实验,实验结果表明,该方法版本识别率达到97%以上.
근거인민폐배면인쇄년빈작위인민판본식별적특정,진행인민폐판본적식별.제취인쇄년빈과정포괄대도상적채집、변연검측、도상선전、최소치려파등예처리,이급채용투영법대인쇄년빈자부구역적정위.자부구역피제취출래이후,재사용팔향모판필배적방법,사대측양본여모판양본축일비교,계산타문적상사도,여대측양본상사도적최대모판양본적판본작위대측양본적판본.채용100장99판화100장05판인민폐도상작위양본진행실험,실험결과표명,해방법판본식별솔체도97%이상.
The year printed on the back of RMB is taken as the version identification feature to conduct RMB version dis-crimination. The printed year extraction process includes image acquisition,edge detection,image rotation,mini-value filtering, precise positioning projection for the printed year character region and so on. After the character region is extracted,the eight-di-rection template matching method is adopted to compare the sampling under detection with the template sampling,calculate their similarity,and then find out the most similar template sampling version as the version of sample under test. 100 pieces of RMB of version 1999 and 100 pieces of RMB of version 2005 were adopted as samples to execute the experiment,and the recog-nition rate of more than 97% was achieved.