Scattering Removal for Finger-Vein Image Restoration

作者：Yang Jinfeng^*; Zhang Ben; Shi Yihua

来源：Sensors, 2012, 12(3): 3627-3640.

DOI：10.3390/s120303627

• image restoration
• finger-vein
• scattering removal
• optical model

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.

• 出版日期2012-3
• 单位中国民航大学