Abstract: The radiant temperature field of the natural terrain is one of the key factors in the synthesis of its infrared textures. A statistical calculating model of infrared radiance of the bare terrain is developed based on its statistical analysis. And the Monte-Carlo method is applied to calculate the parameters of the infrared radiant temperature field of the bare terrain. Finally, the infrared textures of the bare terrain in a day are simulated by the Gaussian-Markov random field models using the temperature field data. Simulation results show that the models and the method in this study can be used to generate the real infrared textures of the bare terrain, which can be widely used in the application of the infrared scenes simulation.

Key words: infrared radiance, bare terrain, infrared texture, Monte-Carlo method, random field