基于K-L变换的红外图像弱小目标检测与分析

摘要

In view of the characteristics of the low contrast and small dimension of targets and the complexity of background in infrared image, a method of detecting and describing infrared weak target was presented with improved K-L transform and generalized K-L transform. Thus the infrared weak target can be detected in low signal-to-noise ratio.%针对红外图像中的目标对比度低、尺寸小及背景复杂等特点,利用正交变换的去相关特性,提出了一种改进的K-L变换和广义K-L变换的红外弱小目标检测与描述方法,从而实现低信噪比条件下红外弱小目标的检测.