中文摘要：

针对传统三维建模流程存在的延时问题，首先提出了一个三维建模流程优化方法．该方法主要从结构优化、模型优化这两个方面对整个建模流程进行优化．同时，为了克服三维建模流程中因分别对单个模型进行优化而耗时多，从而导致模型问优化的时间间隔较长的问题，又提出了一个新型层次模型简化算法，该算法不同于传统基于模型的优化算法之处在于它让简化算法贯穿在整个区域建模过程中，从而大大缩减了模型间优化的时间间隔．最后以联合站系统为例验证了所提三维建模流程优化和简化方法的优越性．

英文摘要：

According to the existing delay problems in the traditional 3D modeling process, a 3D modeling process optimization method is firstly proposed in which modeling process is optimized mainly from structure optimi- zation and model optimization. In the meantime, in order to overcome the more time-consuming problem in the process of respectively simplified model to result in longer time interval problem between models, a new hierarchical model simplification algorithm is presented, in which simplification algorithm was made throughout the area model- ing process, resulting a great decrease of the time interval between the model optimization. Finally, the superiority of the proposed optimization and simplification method of 3D modeling process was verified by means of joint station system.