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Palm image pattern recognition and identification system - has raster optically scanning surface of palm to sense varying levels of light using flashing UV source
Palm image pattern recognition and identification system - has raster optically scanning surface of palm to sense varying levels of light using flashing UV source
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机译:手掌图像模式识别和识别系统-光栅光学扫描手掌表面,以使用闪烁的紫外线源感应变化的光线
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摘要
The system is for enhancing image details of an object to be recorded. The object, such as the palm of a hand, is bombarded by radiant energy from an ultraviolet light source in such a manner that the object absorbs the radiant energy and emits visible light in the form of fluorescence and phosphorescence. A camera optically scans the object and records image details that have become available due to the fluorescence and phosphorescence. The details of objects having rough or irregular surfaces may be further enhanced by disposing the ultraviolet light source at an angle with respect to the surface of the object so that some portions are shaded while other portions of the surface absorb the radiant energy and emit visible light. Appropriate filters may be provided to reduce the effects of extraneous light.
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