高仿真制模伪造指印的识别研究

Research on Recognition of Forged Fingerprints by High Simulation Modeling

目的探究高仿真制模伪造指印的识别方法。方法选取多个印泥指印作为母版,分别采用曝光法制作指模,将母版指印与对应的伪造指印进行整体比较及显微比较。结果伪造指印较母版指印尺寸存在差异、纹线略变粗、纹线间隔略变小、细节特征易黏连、细小痕迹及细微特征不反映或反映不全、单根纹线的墨迹分布平实且缺少细微漏白等。结论识别伪造指印需要对指印的墨迹分布、尺寸、纹线粗细及间隔、细节特征、细小痕迹、细微特征及其他盖印痕迹进行综合分析,其中墨迹分布特征是识别伪造指印的主要依据。

Objective Research on recognition of forged fingerprints by high simulation modeling.Method Inkpad fingerprints were selected as master fingerprints to fabricate fingerprint moulds by exposure,and the master fingerprints were compared with the bogus fingerprints.Results By comparison,their size are different,and bogus fingerprints streaklines are wider,streaklines interval are narrow,minutiaes always connect,tiny traces are always unresponsive,streaklines ink distribution lack of color change and tiny leaky white.Conclusion Identification of bogus fingerprints need to synthetically analyze the ink distributions/size/streaklines interval/minutiaes/tiny traces and else traces,and the ink distributions are the primary gist.