arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1606.06007cs.CV
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基于局部自适应全局模型的完美指纹方向场

Perfect Fingerprint Orientation Fields by Locally Adaptive Global Models

University of Göttingen(哥廷根大学);Institute for Mathematical Stochastics(数学随机研究所);Felix-Bernstein-Institute for Mathematical Statistics in the Biosciences(生物科学数学统计费利克斯-伯恩斯坦研究所)

Carsten Gottschlich, Benjamin Tams, Stephan Huckemann

摘要:

指纹识别在许多商业、政府和法医应用中被广泛用于验证和识别。方向场(OF)在指纹识别系统的各个处理阶段起着重要的作用。OFs用于图像增强、指纹对齐、指纹活性检测、指纹变化检测和指纹匹配。本文提出了一种新的方法,结合局部自适应方法的全局建模的OF。我们表明,该模型完全适应的“真正的”的限制。这个完美的OF是由少量的参数与简单的几何解释。应用是多方面的:快速的专家标记非常差的质量(例如潜在的)OFs,高保真度低参数的OFs压缩和直接的道路地面真理OFs标记的大型数据库,说。在这方面的贡献,我们描述了一种算法,完全自动或半自动估计的参数,这取决于图像质量,我们建立了高保真低参数的压缩的主要基本要求。

英文摘要:

Fingerprint recognition is widely used for verification and identification in many commercial, governmental and forensic applications. The orientation field (OF) plays an important role at various processing stages in fingerprint recognition systems. OFs are used for image enhancement, fingerprint alignment, for fingerprint liveness detection, fingerprint alteration detection and fingerprint matching. In this paper, a novel approach is presented to globally model an OF combined with locally adaptive methods. We show that this model adapts perfectly to the 'true OF' in the limit. This perfect OF is described by a small number of parameters with straightforward geometric interpretation. Applications are manifold: Quick expert marking of very poor quality (for instance latent) OFs, high fidelity low parameter OF compression and a direct road to ground truth OFs markings for large databases, say. In this contribution we describe an algorithm to perfectly estimate OF parameters automatically or semi-automatically, depending on image quality, and we establish the main underlying claim of high fidelity low parameter OF compression.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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