CUI Jian-jiang, LI Qi, XUE Ding-yu etc. Finger vein image deblurring method based on skin scattering models[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 727-732
CUI Jian-jiang, LI Qi, XUE Ding-yu etc. Finger vein image deblurring method based on skin scattering models[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 727-732 DOI: 10.3788/OPE.20162413.0727.
Finger vein image deblurring method based on skin scattering models
Aiming at the image blur in the near-infrared finger vein recognition
an algorithm for restoration of the finger vein image based on elimination of the skin scattering was put forward. A scattering model against near-infrared light during the collection of finger vein image was established through experimental analysis on the skin optics. Based on the model
the point spread function of the finger vein image was adaptively estimated and then employed to restore the finger vein image by using Wiener filter. Three vein images were restored quantitatively by the proposed algorithm. The result shows that the average gradients of edge of the three images increase to 7.636
6.877 and 6.750 respectively. Compared with POSHE algorithm
CLAHE algorithm and high-frequency emphasize filter algorithm
the width and structure of the restored vein image is more consistent with those of the original image with the minimum shadow and distortion and the highest signal to noise ratio.
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references
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