The technology of small target detection in infrared image sequences is the core technology in the system of infrared detection and tracking . and the detection of small target is an important project in recent years “红外弱小目标检测”是红外搜索跟踪系统、红外雷达预警系统、红外成像跟踪系统的核心技术,因此红外小目标的检测是当前一项重要的研究课题。