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Finger Adaptive Illumination Control and Exposure Fusion Imaging for Biometric Finger Vein Recognition

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Academic year: 2020

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Figure

Figure 1. Plots of average gray levels due to LEDs.Each line corresponds to a row in G.
Figure 2.The vein pattern extraction process.From top to bottom: raw vein image, pattern ex-tracted using the maximum curvature method, en-hanced pattern
Figure 3. A thin finger before (top) and after (bot-tom) application of adaptive illumination.
Table 1. Statistical measures of scores from different setups. Scale from bad to good is colour coded fromgreen to yellow to red, for clarity.
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