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Scattering Removal for Finger-Vein Image Restoration
Tianjin Key Lab for Advanced Signal Processing, Civil Aviation University of China, P.O. Box 9, Tianjin 300300, China
* Author to whom correspondence should be addressed.
Received: 7 February 2012; in revised form: 6 March 2012 / Accepted: 6 March 2012 / Published: 15 March 2012
Abstract: Finger-vein recognition has received increased attention recently. However, the finger-vein images are always captured in poor quality. This certainly makes finger-vein feature representation unreliable, and further impairs the accuracy of finger-vein recognition. In this paper, we first give an analysis of the intrinsic factors causing finger-vein image degradation, and then propose a simple but effective image restoration method based on scattering removal. To give a proper description of finger-vein image degradation, a biological optical model (BOM) specific to finger-vein imaging is proposed according to the principle of light propagation in biological tissues. Based on BOM, the light scattering component is sensibly estimated and properly removed for finger-vein image restoration. Finally, experimental results demonstrate that the proposed method is powerful in enhancing the finger-vein image contrast and in improving the finger-vein image matching accuracy.
Keywords: image restoration; finger-vein; scattering removal; optical model
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Cite This Article
MDPI and ACS Style
Yang, J.; Zhang, B.; Shi, Y. Scattering Removal for Finger-Vein Image Restoration. Sensors 2012, 12, 3627-3640.
Yang J, Zhang B, Shi Y. Scattering Removal for Finger-Vein Image Restoration. Sensors. 2012; 12(3):3627-3640.
Yang, Jinfeng; Zhang, Ben; Shi, Yihua. 2012. "Scattering Removal for Finger-Vein Image Restoration." Sensors 12, no. 3: 3627-3640.