基于FPGA的可见光/红外双通道实时视频融合系统

摘要

在已有基于色彩传递的双通道自然感彩色视频图像融合算法及DSP实时处理平台的基础上,采用Xilinx公司的XC5VLX50T FPGA为核心处理器件,配以少量外围器件研制成基于FPGA的可见光/红外双路自然感彩色视频融合系统,可为观察者提供包含可见光/热红外信息的自然感彩色融合视频图像.系统输出图像色彩更接近自然,使得两个通道的原有信息同时得到了更好的表现.基于FPGA的双通道自然感彩色融合系统不仅可实现实时视频融合,而且相对原有DSP处理系统,处理延时明显缩小,可在1帧内完成相关的预处理和色彩传递处理,适合动态场景下的双通道(微光/微光、可见光/热红外、微光/热红外、中波/长波热红外等)视频自然感彩色融合系统应用.%A design for implementing a real time fusion system for visible and IR video based on FPGA is described.The system is made up of XC5VLX50T, which is a core processing device made by Xilinx Company, and small amount of supporting components.Processing flow contains dual-way video capture and buffer, dual-way video color fusion, color transfer, and video output.The color of output video is closer to natural color; therefore the information of two original videos performs much better at the same time.Benefited by the parallel computing, pipelining features of FPGA, the synchronization of two input video and internal operations, the system also achieves real-time operation.