基于FPGA的线阵X射线图像采集系统

摘要

This paper introduces a realization of linear array X-ray image acquisition system based on FPGA. The system implements linear X-ray image sensor control, ADC control, image data cache and high speed image transfer interface on the FPGA chip. This system has been already applied to an X-ray inspection equipment. The experiment result shows that this system is highly integrated, simple structure, flexible design and the image acquisition performance can satisfy the requirements of real-time and reliability of this system.%基于FPGA实现了一套线阵X射线图像采集系统。系统以FPGA芯片作为核心控制器，在FPGA上实现了线阵X射线图像传感器的控制、A／D采样控制、图像数据缓存、高速率图像传输接口等功能。图像传输接口基于CameraLink协议，具有传输速率高、抗干扰能力强、通信距离长等优势。系统已经应用于一套X射线图像检测设备中，通过试验验证，该系统集成度高、结构简单、设计灵活，图像采集性能可以满足高速检测要求下系统实时性和可靠性的要求。