视频瞄准系统中“+”字分划线叠加的设计

摘要

研究了视频瞄准系统中“+”字分划线叠加问题,该模块由CCD视频图像采集器、单片机、视频字符叠加芯片、按键、显示器及相关电路组成.应用视频叠加技术,以MAX7456为核心产生电子分划线.实验结果表明,该瞄准镜可准确地叠加电子分划线,显示清晰的瞄准目标图像,具有瞄准实时性强、操作简便、灵活可靠等特点.%This paper has studied electronic sub-dash in a video aiming.It consists of CCD image sensor,microcontroller unit,the chip of video aiming generating electronic sub-dash,press keys and some electric circuit.Using the technology of screen display,the electronic sub-dash is produced with MAX7456 chip.The experimental results indicate that this video aiming could generate electronic sub-dash accurately and display the target image clearly.It also has the advantages of aiming in real-time,operation flexibility and reliability.