景象匹配实时图模拟生成中几何畸变的建模与仿真

Modeling and Simulation of Geometric Distortion in Real-time Image Synthesis for Scene Matching

景象匹配实时图的模拟生成是巡航导弹末制导系统仿真和景象匹配算法验证的关键技术之一。文中分析了导弹飞行过程中实时图获取时几何畸变产生的原因,建立了基于导弹姿态角偏差和飞行高度偏差的几何畸变模型,给出了实时图模拟生成的方法,实现了具有几何畸变实时图的模拟生成。仿真实验结果验证了方法的有效性和实用性。

Scene image synthesis is a critical technique in both simulation of the terminal guidance system of cruise missile and verification of scenc matching algorithm.In this paper,the reason of geometric distortion in the real-time image which acquired in the course of missile flight by camera is analyzed and a model of geometric distortion based on attitude angle and flight altitude deviation is cstablished.From the model,a feasible method is deducted to realize the real-time image synthesis with geometric distortion.The validity and practicability of the method is verified by simulated experi- ment.