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。
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.
出处
《电子器件》
CAS
北大核心
2012年第5期595-600,共6页
Chinese Journal of Electron Devices
基金
中国科学院二期创新基本项目(C05T022)
