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Recognition of living fingers with a sensor based on scattered-light detection

机译:基于散射光检测的传感器识别活手指

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摘要

To prevent fraud by use of replicas of human fingers for identity verification, we propose to check variations in color and in a series of previously acquired fingerprint images. Movement of a finger on a human hand induces blood movement, and light scattered inside the finger carries this life-related information. In experiments, we found characteristic changes in color and luminance extracted from the central parts of fingerprint images. Some criteria for recognition of living tissue were tested with input provided by more than 30 participants. Inasmuch as the response of a human body to an external stimulus can be checked by our method with no additional components, this technology can raise the security level of a fingerprint identification system.
机译:为了防止通过使用人的手指副本进行身份验证而造成欺诈,我们建议检查颜色变化以及一系列先前获取的指纹图像。手指在人手上的运动会引起血液运动,而散射在手指内部的光会携带与生命有关的信息。在实验中,我们发现从指纹图像中央部分提取的颜色和亮度特征变化。 30多位参与者提供的输入测试了一些识别活组织的标准。由于可以通过我们的方法检查人体对外部刺激的反应而无需任何其他组件,因此该技术可以提高指纹识别系统的安全级别。

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