基于矩的不同地面分辨率红外图像的不变量分析

为了进一步提高匹配制导精度[5],从红外成像的基本原理出发,讨论了由于红外探测器在与目标不同距离上摄取的实时红外图像的地面分辨率的不同对统计不变矩特征不变性的影响,从理论上推导出了不同地面分辨率图像的6维不变矩特征向量,以及不变矩特征匹配制导中实时图像采集过程中弹目距离需要满足的关系,仿真实验部分验证了方法的正确性和可行性。

Analysis of invariant of IR images with different ground resolution based on moment

The various ground resolution affecting on the invariance of statistical invariable moment feature~([5]),as IR detector gets real-time images at various distances to the targets,were discussed according to the basic principle of IR imaging.Six-dimensional invariable moment features with various ground resolution were deduced theoretically.The relationship of missile-to-target distance was required in the real-time image selecting process.The correctness and feasibility of the method are proved in the simulation test.