月面三维地形重建系统的实时性直接关系到探月任务的执行效率.为提高地形重建速度,针对立体像对处理平台体系架构、地形高程模型生成算法设计及地形数据压缩与解压等环节的不同特点,利用并行计算思想实现各阶段的并行化设计,使各环节的执行速度相比串行系统均有3～10倍的提升,一定程度上解决了系统时间瓶颈问题.最后基于月面仿真试验场的真实地形数据进行了系统验证,并对所生成月面地形进行了可视化展示.%The real-time performance of a 3D lunar terrain reconstruction system is closely related to the execution efficiency of a lunar exploration project.To increase the speed of 3D terrain reconstruction process,parallel computing theory is used in design of the architecture,altitude model generation algorithm and terrain data compression and decompression,etc.for the 3D image processing platform.The execution speed is increased by 3 to 10 times for the processes compared with serial systems,significantly solving the time bottle-neck problem.Real terrain datasets collected from lunar surface simulation grounds are used in system validation experiments and terrain reconstruction results are displayed in the 3D lunar reconstruction system.
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