一种基于可量测影像的实景导航数据组织模型

A Vision Navigation Data Model based on Digital Measurable Image

针对可量测影像在实景导航的应用需求，本文主要研究集成了二维导航地理信息与可量测影像的实景导航数据模型，提出了基于道路的可量测影像动态分段索引和基于大文件的存储模型，设计了可量测影像的检索与显示算法。试验结果表明，本文提出的方法实现了可量测影像数据与二维导航地理信息的关联与融合，提高了可量测影像的数据检索效率，适应了实景导航的工程应用需求。

According to application requirement for digital measurable image（DMI） in vision navigation, this paper has presented a vision navigation data model which is the integration of two - dimensional navigation information and DMI. A DMI in- dex approach based on road dynamic segment is proposed in DMI query. And a DMI storage structure based on big file is de- signed. Experiment result illustrates that the data model referred in this paper realized the fusion of two - dimensional navigation information and DMI, enhanced the index efficiency and accorded with application requirement of vision navigation.