Infrared spectroscopic imaging for noninvasive detection of latent fingerprints
Infrared spectroscopic imaging for noninvasive detection of latent fingerprints
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DOI：
10.1111/j.1556-4029.2006.00330.x
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发表时间：
2007-01-01
影响因子：
1.6
通讯作者：
Huffman, Scott
中科院分区：
文献类型：
--
作者：
Crane, Nicole J.;Bartick, Edward G.;Huffman, Scott
证明了傅里叶变换红外(FTIR)光谱成像能够提供未经处理的潜在指纹的详细图像，同时还保留了重要的痕迹证据。在不同的多孔和非多孔基质上形成了未经处理的指纹图谱。用于从背景材料中提取潜在指纹脊线模式的数据处理方法包括基本红外光谱谱带强度、谱带强度测量的加减、主成分分析(PCA)和二阶导数谱带强度的计算，以及这些技术的组合。此外，指纹中的痕迹证据也得到了恢复和鉴定。
The capability of Fourier transform infrared (FTIR) spectroscopic imaging to provide detailed images of unprocessed latent fingerprints while also preserving important trace evidence is demonstrated. Unprocessed fingerprints were developed on various porous and nonporous substrates. Data-processing methods used to extract the latent fingerprint ridge pattern from the background material included basic infrared spectroscopic band intensities, addition and subtraction of band intensity measurements, principal components analysis (PCA) and calculation of second derivative band intensities, as well as combinations of these various techniques. Additionally, trace evidence within the fingerprints was recovered and identified.