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Spoof detection using dual-band fluorescence
Spoof detection using dual-band fluorescence
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机译:使用双频荧光检测欺骗检测
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摘要
The technology described in this document can be embodied in a method for preventing access to a secure system based on determining that a subject is an alternative representation of a live person. The method includes illuminating a first subject with electromagnetic radiation using a first wavelength range that cause fluorescence in human tissue. The fluorescence is in a second wavelength range different from the first wavelength range. The method also includes receiving, responsive to illuminating the first subject and using one or more sensors, electromagnetic radiation emitted from the first subject, and determining that the received electromagnetic radiation is outside the second wavelength range. Responsive to determining that the received electromagnetic radiation is outside the second wavelength range, the method further includes identifying the first subject as an alternative representation of a live person, and preventing access to the secure system in response.
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