基于因子分析的打印文档鉴定方法
Video Engineering(2015)
Abstract
针对现有打印文档鉴定方法在检材和样本中无相同字符时基本失效的同题,提出一种基于因子分离的打印文档鉴定方法.该方法将字符图像看作是融入了字符形态结构的残缺纹理图像,并建立基于灰度共生矩阵特征的2个因子模型,该特征可划分为纹理因子和字符因子两部分.通过因子分离方法获得与字符无关的独立纹理特征,并利用最小距离分类嚣来实现打印文档的同机鉴定.选取35台激光打印机参与测试,鉴别正确率达94.29%,证明了该方法的有效性.
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Key words
printed document identification,factor analysis,texture feature,gray-level co-occurrence matrix
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