First, for the problem of detecting the dim and small targets in the infrared image, a curvelet-based background suppression algorithm is proposed for enhancing the infrared targets.

• 其一,针对红外图像中弱小目标检测的问题,对包含弱小目标的红外图像进行了背景杂波抑制,实现了弱小目标图像的增强;