红外小目标图像预处理及FPGA实现

针对红外图像低对比度、低信噪比等特点,为提高红外小目标的探测能力,提出一种用于红外小目标预处理方法:在对图像进行热晕消除的基础上,结合空间数字滤波,形态学运算,能量累积及帧间分析等先进技术进行处理,采用大规模可编程门阵列(FPGA)来实现,实时给出高质量的图像信息。仿真证明,该方法是有效的。

Image preprocessing and FPGA implementation for small IR target

In accordance with the characteristics such as low contrast and low signal-to-noise ratio of IR target, in order to improve the detecting capacity for small IR target, a preprocessing method for small IR target is proposed. On the basis of eliminating thermal blooming on an image, combining processing with the advanced technical processing such as spatial digital filtering, morphological operation, energy accumulation and interframe analysis, and performing with large-scale FPGA (Field Programmable Gate Array), high-quality image information is given in real time. The simulation demonstrates that the method is effective.