摘要
模拟星空背景以及人造卫星动态飞行场景的真实感生成是计算机图形研究者面临的新课题,也是航天视景仿真中面临的重要任务.针对星空背景下人造卫星等空间目标的图像仿真问题,提出了一种基于Creator与Vega的动态场景生成方法.首先利用Creator绘制星体和人造卫星模型,然后根据亮星星表(BSC)利用Vega生成星空背景,并将人造卫星目标与星空背景合成,最终得到了可以任意时刻、任意角度及任意视场大小观察的空间目标动态场景.仿真结果表明,基于Creator/Vega的空间目标视景仿真取得了很好的效果,并为航天工程中小目标检测与跟踪的实时仿真提供了可行性的参考方法.
Photo-realistic image synthesis of dynamic flying scene of artificial satellites and star maps are really new challenging tasks for the researchers of computer graphics. They are also the important task for space simulation. For the simulation of space targets such as artificial satellites in star map, this paper proposes a method of dynamic scene based on Creator and Vega. First of all, Creator was used to draw the models of stars and satellites, and then a star map was generated using Vega based on the bright stars catalog （BSC）, and the targets of artificial satellites and the star map were synthesized. Ultimately,a space-target dynamic scene which can be seen at any time, any angle and any size from field observations, was obtained. The result shows that visual simulation of space target based on Creator/Vega is effective, and it shows a feasible reference for real-time detection and tracking of small moving targets in aerospace engineering.
出处
《应用科技》
CAS
2010年第5期29-32,68,共5页
Applied Science and Technology
