| 指纹采集的数字全息成像方法研究 |
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| 引用本文： | 罗婷,王大勇,张亦卓,王云新,赵洁,孟璞辉. 指纹采集的数字全息成像方法研究[J]. 光电子．激光, 2012, 0(5): 966-971 |
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| 作者姓名： | 罗婷 王大勇 张亦卓 王云新 赵洁 孟璞辉 |
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| 作者单位： | 北京工业大学微纳信息光子技术研究所;北京工业大学应用数理学院;北京工业大学微纳信息光子技术研究所;北京工业大学应用数理学院;北京工业大学微纳信息光子技术研究所;北京工业大学应用数理学院;北京工业大学微纳信息光子技术研究所;北京工业大学应用数理学院;北京工业大学微纳信息光子技术研究所;北京工业大学应用数理学院;北京工业大学微纳信息光子技术研究所;北京工业大学应用数理学院 |
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| 基金项目： | 国家自然科学基金(61077004);北京市教育委员会科技发展计划重点项目;北京市自然科学基金重点项目(B类)(KZ200910005001)资助项目 |
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| 摘 要： | 提出了一种非接触无损测量的指纹采集数字全息方法。构建了一套反射式离轴菲涅耳数字全息系统,研究了重构指纹振幅和相位图像的方法,并对引入的相位畸变用最小二乘曲面拟合法予以校正。实验中,对刑侦现场容易遗留犯罪嫌疑人潜在无色指纹的多种样品进行了指纹采集,同时得到了清晰的振幅像和相位图像。相位图像的获取增强了指纹信息量,充分表明了数字全息指纹采集方法运用于警用领域指纹采集的可行性,特别是对于无色指纹及其他弱强度信息的指纹更有实用意义。
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| 关 键 词： | 数字全息 指纹采集 相衬成像 相位畸变校正 |
Study on the digital holography imaging of the fingerprint acquisition |
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| LUO Ting,WANG Da-yong,ZHANG Yi-zhuo,WANG Yun-xin,ZHAO Jie and MENG Pu-hui. Study on the digital holography imaging of the fingerprint acquisition[J]. Journal of Optoelectronics·laser, 2012, 0(5): 966-971 |
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| Authors: | LUO Ting WANG Da-yong ZHANG Yi-zhuo WANG Yun-xin ZHAO Jie MENG Pu-hui |
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| Affiliation: | Institute of Information Photonics Technology,Beijing University of Technology,Beijing 100124,China;College of Applied Sciences,Beijing University of Technology,Beijing 100124,China;Institute of Information Photonics Technology,Beijing University of Technology,Beijing 100124,China;College of Applied Sciences,Beijing University of Technology,Beijing 100124,China;Institute of Information Photonics Technology,Beijing University of Technology,Beijing 100124,China;College of Applied Sciences,Beijing University of Technology,Beijing 100124,China;Institute of Information Photonics Technology,Beijing University of Technology,Beijing 100124,China;College of Applied Sciences,Beijing University of Technology,Beijing 100124,China;Institute of Information Photonics Technology,Beijing University of Technology,Beijing 100124,China;College of Applied Sciences,Beijing University of Technology,Beijing 100124,China;Institute of Information Photonics Technology,Beijing University of Technology,Beijing 100124,China;College of Applied Sciences,Beijing University of Technology,Beijing 100124,China |
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| Abstract: | According to the need of investigation of criminal cases,we propose a non-destructive,contact-less fingerprint acquisition method based on the digital holography.The setup of the off-axis digital Fresnel holography is built,and the principle of recording and the reconstruction methods of the fingerprint amplitude and phase image are investigated.The surface fitting with the least square method is applied to correct the phase aberration.Experimentally,the clear amplitude and phase images are obtained from the potential and colorless fingerprints which can be left easily on variety of samples by suspects in criminal investigation site.The results demonstrate that the digital holographic fingerprint acquisition method can be used in the police field,especially for colorless fingerprint and the fingerprint with weak intensity information. |
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| Keywords: | digital holography fingerprint acquisition phase-contrast imaging phase aberration correction |
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