使用多个过器进行指纹图像增强
Haroon Shams1, Tariqullah Jan1, Amjad Ali Khalil1
1Department of Electrical Engineering, University of Engineering & Technology Peshawar, Peshawar, Pakistan.
PeerJ. Computer science
|June 22, 2023
概括
这项研究引入了一种新的方法,用于增强指纹图像,使用扩散-连贯和日志-Gabor过器的组合. 这种新的方法改善了生物识别系统中的降噪和特征检测.
科学领域:
- 生物识别和图像处理
- 计算机科学与工程 计算机科学与工程
背景情况:
- 生物识别利用独特的身体和行为特征,比传统方法提供更高的识别可靠性.
- 数字指纹图像容易受到各种因素的噪音和退化影响,影响特征检测.
- 像加博波器这样的现有增强波器在带宽和光谱信息方面存在局限性.
研究的目的:
- 开发和评估一种新的指纹图像增强方法.
- 为了解决传统的加博波器在指纹图像处理中的局限性.
- 为了提高细节检测在损坏的指纹图像中的精度.
主要方法:
- 开发了一种混合图像增强技术,该技术结合了扩散连贯过器和二维日志加博过器.
- 采用日志加博过器来克服标准加博过器的带宽和光谱限制.
- 使用一致性扩散来有效地减轻指纹图像中的噪声.
主要成果:
- 拟议的组合过方法与单独使用连贯扩散相比,显示出优异的降噪效果.
- 这种新方法显示了基本指纹结构 (山脊和山谷) 的更好的保留.
- 视觉评估表明性能比标准的加博波器和单独的连贯性扩散更好.
结论:
- 扩散连贯和二维日志加博波器的组合在指纹图像增强方面呈现出有前途的进步.
- 这种新的方法有效地解决了噪音问题,并增强了特征提取,以实现更可靠的生物识别.
- 该方法显示了提高自动指纹识别系统性能的潜力.
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