机载视频特殊显示方法研究  

Research of in Airborne Video System Special Display Method

作　　者：谢剑斌[1] 程江华[1] 闫玮[1] 李沛秦[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《现代电子技术》2008年第4期137-138,144,共3页Modern Electronics Technique

摘　　要：针对当前基于专用ASIC的视频显示OSD方法不能满足机裁环境和特殊功能要求的难题,提出一种基于FP- GA的视频OSD实现方法。新方法将前端输入的原始视频数据和当前模块的OSD数据分层处理,然后在显示终端再混合,能够实现OSD对象的可控透明显示和特殊符号定制。实验证明该方法不仅占用FPGA片上资源少,显示效果非常好,而且完全满足机载环境要求。Because of the special circumstance and special functions can＇t be met by using commercial OSD ASIC in air borne system,thls article presents a method of implementing the video OSD based on FPGA platform. The new method sepa-rates the front part incoming original video data and OSD data into different layers, and achieves the controllable transparent display of OSD objects and the customization of special icons. The result of experiment shows that this method uses less re source on chip, and the screen displaying is perfect. It completely satisfies the requirement using in airborne circumstance.

关 键 词：机载 视频 OSD FPGA 

分 类 号：TN873.93[电子电信—信息与通信工程]