Real-time Simulation Of Infrared Land And Sea Scene

Infrared imaging simulation plays a significant role in fields such as national defense, target detection, hazard rescue and so forth. However, current researches focus majorly on terrain or sky object, or single static object in ocean scene, with little work among real-time dynamic land and sea modeling and rendering. Given the application value and demand in such occasions, we proposed a real-time simulation solution oriented to land and sea scene, which models hybrid scene components including terrain, ocean surface and target object, enabling real-time simulation and rendering.By collating physics theories on infrared and thermal simulation, combined with current simulation researches, we established and implemented a unified framework for infrared simulation and rendering on hybrid scene with land and sea components, where varied targets were integrated into a general simulation process. Also, based on parameter divergences of terrain, sea and vessel, corresponding models were applied to them, as material based model for terrain, self-radiation and reflection model for ocean surface, and grid calculation model for vessel, which managed to convert vessel simulation problem to heat source simulation and 2D heat transfer on vessel surface by employing source pre-computation and surface parallel iterative calculation.Furthermore, a real-time infrared simulation system was established and implemented, where we built the unified framework for land and sea scene to support custom settings of scene and its thermal physics. Moreover, GPU parallel computing techniques were employed to optimize the calculation process. The system proved to be interactive and extensible, allowing real-time simulation and rendering of land and sea scene.We concluded our work at the end of the thesis, and presented limits to be studied in the future.