基于可见光影像的三维红外地景生成

Infrared 3D Terrain Image Generation Using Visiable Light Image

红外地景生成是红外场景仿真的基础,影响因素多、计算效率低一直是影响计算机生成红外地景的重要问题。在研究红外地景生成影响因素的基础上,提出了一种易行的红外地景生成流程,并对红外辐射度算法进行了简化;以可见光图像为基础,经过对地表材质进行分类,将可见光图像分割为不同材质的若干区域,对不同材质在位置、气象、时间等因素下的红外辐射度进行计算,从而合成与可见光图像相关的红外地景图像;最后依据数字高程模型,对三维红外地景生成进行了实验验证。

Infrared terrain image generation is the foundation of infrared scene simulations. The contributing factors complexity and low computing efficiency are the main bottlenecks of infrared terrain image generation. The paper proposes the main contributing factors and the generation process while the arithmetic are simplified. As a input, the visible light image are classified into several material regions, and each of the material infrared radiations are computed under given conditions, the final infrared terrain image is composited easily by the material radiation images. The infrared terrain image generation method and arithmetic are validated on a digital evaluation model(DEM) based terrain environment.