面向个人移动平台的室内三维模型数据重构研究

3D Model Reorganization for Indoor Navigation System for Personal Mobile Platform

针对室内三维导航的需求及个人移动平台资源、计算能力有限之间的矛盾,在顾及三维模型渲染质量和效率的基础上,从模型轻量化的角度,采用数据库技术,构建了针对三维实体模型数据的SLMATV数据组织和管理方案(场景-模型层-模型-外观-三角形-顶点),该方案通过合理的数据重构和数据优化,部分采用以空间换时间的策略,有效降低了数据冗余,提升数据传输和绘制的效率,降低计算开销,为高逼真度的三维模型可视化绘制奠定了数据基础和数据保证。实例测试表明,该方案可以有效实现三维实体的轻量化建模,可在保证渲染效率和质量的基础上,为移动平台室内三维应用提供可视化的数据源。

With the development of indoor positioning and indoor navigation technology, providing high-quality 3D models for personal mobile platform has become a reality needs of users. However, the disadvantage of limited storage capacity and lower computing resources of personal mobile platform capabilities becomes an obstacle to the development of Indoor 3D Navigation System. In this paper, from the view of reducing the data redundancy, the SLMATV model （scene-layer-model- appearance-triangle-vertex, SLMATV） is proposed. It changed the traditional way of 3D model data storage, provided the index data between models, triangles, appearance and vertices. Examples indicate that SLMATV model can effectively reduce the 3D model data size, improve data transmission speed and improve rendering quality can satisfy with the 3D data need of Indoor navigation system.