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视频叠加技术已经广泛应用于航空电子显示系统,高速飞行状态中的航空飞行器能否快速准确无抖动地显示特定目标成为视频显示技术领域研究的重点。传统的基于DSP的图像叠加技术,功耗较高,且图像实时传输效率低,随着航空电子技术的发展,其越来越难以满足航空飞行器视频信号的实时性显示。本设计在传统DSP视频处理硬件平台上[1],构造出一种改进的视频采集捕获平台,并提出相应的硬件实现逻辑以及实现结果 ,处理结果表明,本设计视频叠加显示技术画面流畅无抖动,具有良好的叠加效果。
Video overlay technology has been widely used in avionics display systems. It is the focus of the field of video display technology to display specific targets quickly and accurately without jerking. Traditional DSP-based image overlay technology has high power consumption and low real-time image transmission efficiency. With the development of avionics technology, it is more and more difficult to meet the real-time display of video signals of aero-aircraft. The design in the traditional DSP video processing hardware platform [1], to construct an improved video capture and capture platform and put forward the corresponding hardware implementation logic and results, the results show that the design of the video overlay display technology smooth and jitter , With good superposition effect.