摘要
弱点目标的检测是舰载红外警戒系统中的一个关键问题。由于目标处于海天线附近的高强度背景杂波中,因此,采用常规的点目标检测算法对其进行检测的结果都不够理想。针对这一问题,本文提出了一种改进方法:首先用中值滤波方法对海空背景进行预测和抑制,自适应阈值分割后根据目标点和背景杂波残留在多向梯度上的差异,通过多向梯度检测进一步剔除背景杂波残留,提高了单帧图像的检测概率。
Dim-point targets detection is a key problem of the shipboard infrared search and track system. The targets are in the background clutter which intensity is heavy. So the performance of the general algorithms is not very good. An improvement method is prevented to solve the problem in the paper. At first, the sea-sky background is forecasted and restrained by medium filtering. And then after image segmentation the leavings of the background clutter are eliminated by multi-orientation gradient detection.
出处
《光学与光电技术》
2003年第1期47-49,共3页
Optics & Optoelectronic Technology
