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相关概念视频

IR Frequency Region: Fingerprint Region01:03

IR Frequency Region: Fingerprint Region

907
IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the...
907

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相关实验视频

Updated: Jul 9, 2025

Detection of Exosomal Biomarker by Electric Field-induced Release and Measurement EFIRM
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Detection of Exosomal Biomarker by Electric Field-induced Release and Measurement EFIRM

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ZJUT-EIFD:一个同步收集的外部和内部指纹数据库

Haohao Sun, Haixia Wang, Yilong Zhang

    IEEE transactions on pattern analysis and machine intelligence
    |November 28, 2023
    PubMed
    概括
    此摘要是机器生成的。

    本研究介绍了ZJUT-EIFD,这是一个新的数据库,结合了来自光学连贯断层扫描 (OCT) 的外部指纹 (EF) 和内部指纹 (IF). 本资源解决了对IF和EF-IF互操作性进行研究的需求,增强了指纹识别安全性.

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    Last Updated: Jul 9, 2025

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    科学领域:

    • 生物识别信息 生物识别信息
    • 计算机科学 计算机科学
    • 医疗成像医学成像

    背景情况:

    • 外部指纹 (EF) 容易受到伪造和环境因素的影响.
    • 使用光学连贯断层扫描 (OCT) 的内部指纹 (IF) 提供了增强的安全性,但缺乏广泛的研究和公共数据集.
    • 在理解和应用EF-IF互操作性方面存在差距.

    研究的目的:

    • 推出ZJUT-EIFD,这是第一个整合海外投资基金和传统投资基金的公共数据库.
    • 为评估IF和EF-IF互操作性提供一个基准.
    • 促进指纹识别技术的进步.

    主要方法:

    • 开发了ZJUT-EIFD数据库,使用OCT和总内部反射 (TIR) 同步获取EF和IF.
    • 收集了来自60个受试者的399根手指的数据.
    • 详细的数据库组成,数据质量和验证性能.

    主要成果:

    • ZJUT-EIFD是第一个将OCT和TIR结合在一起的公共数据库,用于同步采集指纹.
    • 该数据库提供了EF和IF的全面数据.
    • 最初的分析详细介绍了数据质量和验证性能.

    结论:

    • ZJUT-EIFD是EF-IF研究和开发的重要资源.
    • 该数据库有助于进行基准测试和互操作性测试.
    • 预计这项工作将在指纹识别领域取得重大进展.