Flying Scene Modeling And Visual Simulation Base On Creator And Vega

Scene simulation has important application value in the military field. It has a theoretical significance and wide application in military fields such as designing infrared guidance missile, infrared stealthy technology, military simulation training and weapon performance evaluation. Influenced by the Cold War, foreign countries set strict blockade on china’s infrared technology, besides no mature infrared simulation software for modeling infrared scenes and few researching resources on Infrared scene modeling available domestically. Demand on independently-developed infrared simulation software is urgent. In this case, researching complex urban scene modeling and developing dynamic visual simulation software with independent property right is undoubtedly of great significance. In this thesis, research has been conducted on the complexity of modeling infrared scene around the city, modeling urban large-scale three-dimensional scene, materials modeling and Modeling in three-dimensional scene.This thesis features a large-scale urban scene and the characteristics of the difficult goal of modeling, including data acquisition and pre-processing and modeling in several aspects of the realization of such a study. For large-scale urban landscape, applying high resolution aerial shadow images by calculation method of:surface features and terrain modeling to achieve a wide range of rapid urban landscape modeling. In order to be able to accurately map the terrain texture to the terrain, we give latitude and longitude information to the texture. It has a joints problem when splicing different texture resolution together. We have several methods to reduce the joints such as integrated to use different algorithms, to select the characteristics of a representative point, to correct individual feature points. We have a complex target modeling method for the irregular shape of the target surface. This method use the mirror or projection of the basic three-dimensional model provided by Creator software, after that, we can build a more complex object model to achieve buildings of a typical three-dimensional fine modeling.In materials modeling, this thesis uses our self-developed software named material classification and assignment, which uses visible texture image as input. It helps us to achieve the coverage of large, complex background texture segmentation quickly.This thesis studied the infrared scene modeling technique and it has been successfully applied to actual projects, the 100km × 100km landscape goals and seven types of models have been typically used to deliver troops, and its infrared simulation results obtained good comment by many experts including the pilot.