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A diffusion optical model for skin scattering suppression in finger vein image restoration

机译:用于抑制手指静脉图像恢复中皮肤散射的扩散光学模型

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摘要

Human identification using finger vein has been adopted in number of fields due to its high accuracy of recognition. However, image degradation caused by the strong scattering of finger tissues inevitably reduces the recognition rate. In this paper, we propose a new method to address the skin scattering problems in finger vein imaging. Firstly, a novel diffusion Point Spread Function (diffusion-PSF) model is proposed to precisely describe light scattering in finger tissues. Secondly, the blur-SURE (Stein's unbiased risk estimate) method is utilized to yield accurate estimation of the diffusion-PSF model's parameters. Finally, we adopt the multi-Wiener SURE-LET (Linear expansion thresholds) approach to improve the robustness of restoration performance. The experimental results illustrate that the proposed method significantly improves the clarity of finger vein images and enhances the venous network.
机译:由于其高精度的识别,因此已经在许多领域中采用了使用指静脉的人类识别。但是,由于手指组织的强烈散射而导致的图像劣化不可避免地降低了识别率。在本文中,我们提出了一种解决手指静脉成像中皮肤散射问题的新方法。首先,提出了一种新颖的扩散点扩散函数(diffusion-PSF)模型来精确描述手指组织中的光散射。其次,使用模糊-SURE(Stein的无偏风险估计)方法对扩散-PSF模型的参数进行精确估计。最后,我们采用多维纳SURE-LET(线性扩展阈值)方法来提高恢复性能的鲁棒性。实验结果表明,所提出的方法显着提高了手指静脉图像的清晰度,并增强了静脉网络。

著录项

  • 来源
  • 会议地点 Shenzhen(CN)
  • 作者单位

    Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, Southern Medical University of China, Guangzhou, Guangdong Province, China;

    Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, Southern Medical University of China, Guangzhou, Guangdong Province, China;

    Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, Southern Medical University of China, Guangzhou, Guangdong Province, China;

    Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, Southern Medical University of China, Guangzhou, Guangdong Province, China;

    Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, Southern Medical University of China, Guangzhou, Guangdong Province, China;

    Guangdong Provincial Key Laboratory of Medical Image Processing, School of Biomedical Engineering, Southern Medical University of China, Guangzhou, Guangdong Province, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Scattering; Veins; Skin; Fingers; Image restoration; Mathematical model; Photonics;

    机译:散射;静脉;皮肤;手指;图像恢复;数学模型;光子学;;

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