摘要
为了提高检测红外弱小目标的速度和精度,提出了一种用于预检测红外弱小目标的灰度迭代法。通过由红外图像X的灰度均值、最大值和抑制比定义的迭代函数系统对X的灰度值进行分形迭代来降低X中的背景灰度值和噪声灰度值,从而增强X中红外弱小目标的亮度。运用这种方法对夜空、乌云和丛林三类单帧红外图像进行分形处理,预检测效果较好。
To improve speed & accuracy of detecting IWST, a gray iteration is proposed. To reduce gray value of background and noise in IR image X, the gray of X is processed by Iterated Function System (IFS) defined from gray mean value, gray maximum of X and suppression ratio, and then the brightness of IWST in X is enhanced. This scheme is used to fractal process three kinds of single frame infrared image of night-sky, dark-cloud and jungle, which experimental effect is better.
出处
《科学技术与工程》
2007年第19期5173-5176,共4页
Science Technology and Engineering
基金
江苏省高校自然科学基金项目(04KJD520185)
江苏省教育厅基金项目(JHZD05-016)资助