摘要
为了取得较逼真的红外图像,提出了一种利用可见光图像反演红外图像的新方法。首先,将可见光图像分割为"物体"和"大气"两个区域,由各区域与环境辐射的关系计算出在特定波段内进入仿真红外热像仪的总辐射出射度。然后,模拟红外热像仪的内部工作参数,根据红外热像仪的工作原理计算出各区域自身的辐射出射度,从而得到各区域的温度值。最后,由红外图像温度值与灰度值的映射关系,将各区域的温度值以灰度值的形式表现出来,即得到了仿真的红外图像。实验结果表明,此方法可有效地提高反演效果,具有较强的实用性。
In order to obtain reality IR image, a new method of inverting visible image to IR image was proposed. Firstly, the visible light image was divided into two areas, the “object” and the “atmosphere”. The total radiant emittance, which eventually entered the simulated IR thermal imager at the specific spectrums, should be worked out according to the relation between the certain area and environmental radiation. Secondly, the internal working parameters of the IR thermal imager was simulated, the radiant emittance of each area was obtained based on the working principle of the imager. And then the temperature value in each area was got from the radiant emittance. Finally, the simulated 1R image was obtained, which was in the form of gray values according to the mapping relations of temperature value and gray value. The experimental result shows that the proposed method can improve the invertion effect and is practicality.
出处
《红外与激光工程》
EI
CSCD
北大核心
2008年第5期773-776,共4页
Infrared and Laser Engineering
基金
国防"十一五"预研资助项目(513220208)
关键词
红外图像模拟
区域
辐射出射度
灰度范围
Infrared image simulation
Area
Radiant emittance
Gray value range
