基于并行信号处理的手持式夜视系统设计与实现

针对国内夜视技术落后于国外的现状，研制了一种手持式夜视系统，该系统具有红外单通道显示、可见光单通道显示和融合显示三个工作模式。采用了基于双DSP+FPGA结构的并行信号处理技术，解决了红外与可见光拉普拉斯融合算法在传统硬件平台上无法实时运行的问题。针对系统在每次上电时出现的图像混乱现象，提出了一种基于FPGA的自适应图像拼接方法，实现了并行系统清晰完整的图像显示。实验结果表明，系统运行速度快，输出图像效果好，实用性强。

Design and implementation of handheld night vision system based on parallel signal processing

In the view of the gaps of night vision technology between abroad and domestic, a kind of handheld night vision system was designed and implementated, which displays with three channels, respectively. In the different occasions, this system can be chosen infrared display, visible display and fusion display to observe the targets. The ideal of parallel signal processing was proposed and achieved it using dual-DSP and a FPGA, which solves the problem of real time. Aiming at the problem of video muddledness, a kind of adaptive image mosaic method based on FPGA was proposed. According to the results of experiment, the system has good images quality and very strong practicability, meets the need of various occasions.