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    • 94. 发明公开
    • Latent fingerprint detectors and fingerprint scanners therefrom
    • DetektorenfürlatenteFingerabdrückeund Fingerabdruckscanner damit
    • EP2637127A2
    • 2013-09-11
    • EP13170305.0
    • 2011-11-02
    • Lockheed Martin Corporation
    • Miesak, EdwardGold, Edward V. Jr.
    • G06K9/00G06K9/20
    • G06K9/00033G01N21/8851G01N21/94G01N2201/06113G01N2201/10G06K9/00013G06K9/2036
    • This document relates to systems and method for latent fingerprint detection using specular reflection (glare). An exemplary system may include a light source alignment portion configured to align a light source at an illumination angle relative to a sample surface such that the light source illuminates a sample surface so that the surface produces specular reflection. The system may also include a specular reflection discriminator that directs the produced specular reflection to an optical detector aligned relative to said sample surface at an alignment angle that is substantially equal to an angle of reflection of the produced specular reflection. Preferably, the directed specular reflection does not saturate the optical detector; and the optical detector captures the specular reflection from the sample surface and generates image data using essentially only the specular reflection.
    • 本文件涉及使用镜面反射(眩光)进行潜在指纹检测的系统和方法。 示例性系统可以包括光源对准部分,其被配置为相对于样品表面以照明角度对准光源,使得光源照射样品表面,使得表面产生镜面反射。 该系统还可以包括镜面反射鉴别器,其将生成的镜面反射引导到相对于所述样品表面对准的光学检测器,该对准角基本上等于所产生的镜面反射的反射角。 优选地,定向镜面反射不会使光学检测器饱和; 并且光学检测器捕获来自样品表面的镜面反射,并且基本上仅使用镜面反射产生图像数据。