1︰25万道路数据的更新方法探讨  

Research on the Updating Method of 1 ∶ 250000 Road Data

作　　者：周浩[1] 阳牧男 王新华[1] 

机构地区：[1]国家测绘地理信息局第三航测遥感院,四川成都610100

出　　处：《地理空间信息》2015年第3期150-152,164,共4页Geospatial Information

基　　金：数字制图与国土信息应用工程国家测绘地理信息局重点实验室开放研究基金资助项目(DM2013SC11)

摘　　要：提出了一种以自动缩编为主、人工协调综合为辅的道路数据更新模式,引入并发展了线要素的自动匹配方法,实现了增量数据的自动提取和筛选、缩编,并从技术路线上详细阐述了增量更新的实现流程。This paper proposed an updating mode based on automatic generalization, supplemented by artificial coordinated comprehensive. The automatic matching of line elements was introduced and developed. And a series of actions, which performed by the incremental data was achieved by extracting, screening, downsizing automatically. Meantime, the process of incremental updating was described in detail from the technical route. The result demonstrates that the proposed method is feasible and practical, and achieves high generalization quality.

关 键 词：增量信息 缩编更新 自动匹配 1︰25万地图数据库 

分 类 号：P208[天文地球—地图制图学与地理信息工程]