通过分析高压电晕放电的光谱特性，提出应用紫外光+可见光的双光谱实时视频图像处理系统来探测高压电晕放电．该双光谱系统以高性能数字信号处理器TMS320DM642为核心，为了采集紫外信号而设计了光路、光谱转换和图像增强等技术，同时采用多种优化设计的硬件结构、快速融合算法及管理多进程的嵌入式实时操作系统DSP／BIOS，实现具备手动像素平移配准功能的双通道数字图像的实时融合处理．系统可以实时检测和定位高压电晕放电紫外信号，且具有响应速度快、作用距离远、不受日光和雨雾的干扰等优点．

By analyzing the spectral characteristic of high-voltage corona,an ultraviolet & visible light dualspectrum real-time video image processing and image fusion system to detect the high-voltage corona was proposed. The dual-spectrum system took the high performance digital signal processor TMS320DM642 as a core;light path,the spectrum transformation and image enhancement were designed to capture the ultraviolet signal. They adopted many kinds of considerations design to optimize hardware structural,and fasts fusion algorithms to improve the system speed,and the embedded real-time operating system(DSP/BIOS)to manage multi-process at the same time. Further more,manual registration function that was based on pixels translation was provided. The system can meet the requirement of real-time dual-channel digital image fusion processing in order to detect and locate the high-voltage corona ultraviolet signal in real time. Its merits were speed of response quick,the range coverage was far,not sunlight and drizzle disturbance.