| 基于达芬奇技术的指纹图像采集系统设计实现 |
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| 引用本文： | 杨迪,朱明,吕柯岩.基于达芬奇技术的指纹图像采集系统设计实现[J].电子器件,2012,35(5):595-600. |
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| 作者姓名： | 杨迪 朱明 吕柯岩 |
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| 作者单位： | 中国科学院航空光学成像与测量重点实验室中国科学院长春光学精密机械与物理研究所;中国科学院研究生院;中国科学院长春光学精密机械与物理研究所 |
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| 基金项目： | 中国科学院二期创新基本项目(C05T022) |
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| 摘 要： | 以达芬奇技术为基础设计实现了一套指纹采集系统。硬件方面,选择了FPS200作为本系统的指纹采集芯片,完成了芯片在USB模式下工作的电路设计。软件方面,编写Linux下的芯片驱动程序,实现FPS200与TMS320DM6446处理器以USB方式的通信;在Codec Engine架构上完成指纹采集系统的图像处理程序编写。经实验证明,指纹采集系统性能稳定,采集与预处理速度快,图像质量高,可以实现实时处理。
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| 关 键 词： | FPS200传感器 指纹采集处理 达芬奇技术 USB设备驱动程序 偏微分去噪 |
Design of fingerprint collecting system based on Davinci technology |
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| Affiliation: | YANG Di1,2,3,ZHU Ming1,3,Lü Keyan1,2,3(1.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Key Laboratory of Airborne Optical Imaging and Measurement,Changchun 130033,China; 2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China; 3.Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China) |
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| Abstract: | Based on Davinci technology,a fingerprint collecting system was designed and finished.In the hardware aspect,FPS200 is chosen as fingerprint collecting chip,the design of the circuit is finished under USB working mode.In the software aspect,we have written the USB driver based on Linux,which can be enabled to realize the communication between FPS200 and TMS320DM6446 processor through USB interface;and to finish image processing program based on Codec Engine.Proved by experiments,our system works stably,enhanced image can keep fingerprint characters very well and dispose rapidly. |
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| Keywords: | FPS200 sensor fingerprint collecting and processing Davinci technology USB device driver PDE denoising |
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