摘要
研究舰船红外制导技术,在海平面上进行图像传输识别,由于海天背景下的红外图像目标与背景对比度较差,噪声大,所以图像边缘模糊。针对目标识别困难问题,提出了一种改进的中值滤波方法,通过计算机仿真,研究了海上舰船红外图像的传输与识别问题。根据红外辐射在大气传输中的特性和舰船的红外辐射特性,对红外辐射大气传输的舰船红外图像用改进的中值滤波方法进行预处理。最后,对预处理后的图像进行了拉普拉斯锐化处理。通过仿真结果证明,红外辐射大气传输的舰船红外图像的识别精度高,图像清晰,可以满足实时识别目标的要求。
Infrared images in sky–sea background have some characteristics,such as the low target-to-background contrast,great noise,edge blur and so on.So target recognition becomes more and more difficult.An improved median filter is presented.Problems about transmission and recognition of infrared images for warship were studied through computer simulation.First,the atmospheric transmission property of infrared radiation is introduced.Then the property of infrared radiation for warship is given.And then the improved median filter is applied to infrared images for warship.Finally,Laplacian sharpening is applied to images.A conclusion is obtained from the simulation experiment.For recognition of infrared images for warship transmitted through infrared radiation,the improved median filter is first applied to images,and then Laplacian sharpening is applied to images.Finally,the recognition of targets can be easily realized.
出处
《计算机仿真》
CSCD
北大核心
2011年第2期316-319,共4页
Computer Simulation
基金
国家自然科学基金项目(60773053)
山东省教育厅科技计划项目(J08LJ69)
关键词
红外图像
大气传输
图像识别
中值滤波
Infrared image
Atmospheric transmission
Image recognition
Median filter
