【作者】 高森； 李钢； 张仁斌； 李晓林； 张明；

【Author】 Gao Sen Li Gang Zhang Renbin Li Xiaolin Zhang Ming (Hefei University of Technology Hefei 230009)

【机构】 合肥工业大学；

【摘要】 本文基于正弦曲线的性质,提出将振幅与初相位均不相同的多条正弦线以一定规则组成纹理基元,进而生成底纹的印鉴防伪方法,并提出相应的识别算法:根据正弦曲线的表达式,采用二维Hough变换分别提取正弦曲线的振幅与初相位的参数。结果表明,印鉴底纹具有较强的抗干扰性,能够在小区域内,较快被识别,可以作为印鉴防伪。更多还原

【Abstract】 In this paper,research is performed on the formation and recognition algorithm of Security seal shading problem.Based on the nature of the sine curve,algorithm of Security Seal’ formation is proposed for this purpose,on certain rules,format Security Seal with different Sinusoidal Curves whose amplitude and initial phase are all different;and the corresponding recognition algorithm:According to the sinusoidal expression,respectively,two-dimensional Hough transform to extract the amplitude of the sine curve with the initial phase of the argument.The results show that the seal is immunity,in the small area,was quickly recognized,can serve as a security seal.更多还原