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The performance of contactless biometric identification system is greatly affected by the image quality. In order to acquire palm vein image with high-quality, an image quality assessment algorithm for palm vein is presented based on clarity and brightness uniformity. We propose two criterions and fuse them to make a more reasonable assessment of palm image quality. Moreover, a large number of experiments...
How to use the same capturing device to collect the high quality palm vein image of different people is a difficult question. In this paper, a multi-spectral adaptive capturing system is designed to study the relationship between image capturing and the intensity of the multi-spectral light source. In order to obtain the optimal control signal, the image quality evaluation results are applied to control...
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