激光与光电子学进展, 2020, 57 (22): 221101, 网络出版: 2020-11-11
光学相干层析技术在朱墨时序检验中的初步研究 
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Preliminary Study on Determining the Sequence of Intersecting Lines Using Optical Coherence Tomography
成像系统 光学相干层析 朱墨时序 断层图像分析 文件检验 image systems optical coherence tomography sequence of intersecting lines tomography analysis document examination
摘要
朱墨时序一直以来都是法庭科学文件检验领域中的难题之一。鉴于此,首先利用一种新型的光学断层成像技术,即光学相干层析(OCT)技术对朱墨时序进行检验,该技术具有原位、无损、快速和高分辨率等优点。利用一套中心波长为900nm的频域OCT系统对三种不同类型的朱墨时序样本进行OCT成像检验,比较不同类型样品朱墨交叉区域的二维断层OCT图像的特征差异,并分析特征差异产生的原因。初步实验研究结果表明,利用OCT技术可以为朱墨时序的判断提供一种有效的处理手段,为补充和丰富现有的方法体系奠定基础。
Abstract
Determination of the sequence of intersecting lines has always been one of the difficult problems in the field of forensic science document inspection. Considering this, we first use a new technology for optical tomography, specifically optical coherence tomography (OCT), to study the sequence of intersecting lines. A frequency-domain OCT system with a center wavelength of 900nm is used to perform imaging and inspection on three different types of intersecting lines samples, to compare the feature differences of 2D tomographic OCT images of the intersecting lines of different types of samples and to analyze the feature differences. Preliminary experimental results show that OCT technology can provide an effective method for the judgment of the sequence of intersecting lines and can lay a foundation for supplementing and enriching the existing ecosystem of measurement techniques.
蒋鹏, 王蔚昕, 张宁, 王成铭, 黄威, 石高军, 许小京, 高树辉. 光学相干层析技术在朱墨时序检验中的初步研究[J]. 激光与光电子学进展, 2020, 57(22): 221101. Peng Jiang, Weixin Wang, Ning Zhang, Chengming Wang, Wei Huang, Gaojun Shi, Xiaojing Xu, Shuhui Gao. Preliminary Study on Determining the Sequence of Intersecting Lines Using Optical Coherence Tomography[J]. Laser & Optoelectronics Progress, 2020, 57(22): 221101.
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