基于OpenGL的空间目标图像生成方法

Method of Space Object Imaging Simulation Based on OpenGL

空间目标监视系统设计与目标识别算法开发需要有充足的图像源,为解决空间目标识别问题,在无法采用真实空间目标进行试验,开展仿真成像研究尤为重要,为使仿真图像体现真实空间目标成像探测系统且有探测能力,在分析OpenGL透视投影成像模型与真实成像系统的针孔成像模型之间的关系的基础上,提出了在OpenGL平台生成空间目标图像的方法与流程,通过合理设置有关参数生成目标和成像系统信息在内的仿真图像。经仿真实验证实,提高了仿真图像的真实感和可信度,并具有图像处理算法稳定性和可靠性,为空间目标成像探测系统设计和目标识别算法研究提供了数据基础。

The design of space - based surveillance systems and the research of target identification algorithms need enough space object images. However nowadays it is impossible to do experiments factually by using real satellites. So it has been very important to utilize imaging simulation technology. To solve this problem and make the sim- ulated images contain the detection performance of real optical imaging systems, the relationship between OpenGI, im- aging model and the pinhole imaging model of real imaging system was researched based on the analysis of the perspective imaging model of OpenGL, then a method of space object imaging simulation was put forward. By setting correlative OpeuGL parameters appropriately, high fidelity simulated images including target and imaging systems information were generated. It can improve the reality and the fidelity of simulated images, checkout and enhance the stability and reliability of image processing algorithms, and provide data base for the design of space object imaging detection systems and the research of target identification algorithms.