基于FPGA的红外焦平面实时图像处理系统

Real-time image processing system for IRFPA based on FPGA

针对红外焦平面阵列(IRFPA)实时图像处理系统中的重要环节——IRFPA的非均匀性校正和红外图像的增强,提出了以FPGA为核心的红外焦平面成像实时处理系统。该系统能够实时完成校正系数的计算I、RFPA非均匀性校正、红外图像的增强及视频合成等功能。在FPGA中采用了并行处理结构和流水线技术,使系统的处理速度高达50M×12 bit/s,特别适用于大面阵、高帧频IRFPA实时图像处理。仅用一片FPGA完成所有的处理功能,使整个系统结构简单、体积小、功耗小,便于小型化。

Nonuniformity correction and image enhancement are two important keys for Infrared Focal Plane Array （IRFPA） real-time image processing system. A new real-time infrared image processing system based on Field Programmable Gate Array （FPGA） is proposed. The system implemented nonuniformity correction, image enhancement, and video synthesization,etc. By using parallel architecture and pipeline technique in FPGA, the system processing speed was as high as 50M×12 biffs. It is particularly suitable for large arrays and high frame frequency infrared imaging system. Only one FPGA chip is used, so it is easy to miniature the whole system. The system has simple structure,small size,and little power consumption.