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1 概念及装置定向反射照相技术就是在与照明光线入射角相等的反射角方向上接收记录被检验物体的反射光亮度分布的配光照相技术。适用于光滑平面客体上汗液、油脂手印的拍照提取。装置如图1所示。图1 定向反射照相装置示意图 2 拍照距离的影响及原理以拍照指纹为例,通常在
1 concept and device Directional reflection photography technology is in the direction of the incident angle with the illumination light angle of reflection to receive recorded light intensity distribution of the reflected light distribution of the test object. Suitable for smooth surface object sweat, grease fingerprinting photo extraction. Device shown in Figure 1. Figure 1 directional reflection photographic device schematic 2 camera distance and the impact of the principle Take the camera fingerprint as an example, usually in the