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16 September 1987 Thermal Modeling And IR Scene Generation
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The Waterways Experiment Station (WES) has for several years been engaged in the development of numerical models for the simulation of terrain surface temperatures. Models have been developed to describe major components of the earth's surface such as grasslands, lands essentially bare of vegetation, such as deserts, and forested areas. These models combine first principles and semi-empirical techniques and use local surface meteorology and material thermal properties for input. Recently, WES has begun work on using these models to provide terrain radiance information needed for production of realistic computer generated infrared (IR) images. The approaches used in terrain temperature modeling are discussed, along with the structuring of the codes in a form amenable to scene generation requirements. Data needed by the models are outlined, and model predictions are compared to measured temperatures. Various approaches to account for the effects of atmospheric contaminants which may be applied to computer scene simulation are presented. Computer texture generation techniques based on thermal modeling as applied at WES are outlined. Application of models in an IR scene generation computer code developed by WES is discussed and example imagery presented. Possible extension of current work to other spectral regions and additional efforts for increased realism are also discussed along with possible approaches.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Randy K. Scoggins "Thermal Modeling And IR Scene Generation", Proc. SPIE 0781, Infrared Image Processing and Enhancement, (16 September 1987);

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