| 叠置运算支持下的跨比例尺城区居民地数据变化发现与更新 |
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| 引用本文： | 杨敏,艾廷华,晏雄锋,杨伟,周校东,周启.叠置运算支持下的跨比例尺城区居民地数据变化发现与更新[J].测绘学报,2016,45(4):466-474. |
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| 作者姓名： | 杨敏 艾廷华 晏雄锋 杨伟 周校东 周启 |
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| 作者单位： | 1. 武汉大学资源与环境科学学院, 湖北武汉 430079;2. 地理信息工程国家重点实验室, 陕西西安 710054;3. 四川省第二测绘地理信息工程院, 四川成都 610100 |
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| 基金项目： | 国家自然科学基金(41401447;41531180);地理信息工程国家重点实验室开放研究基金(SKLGIE2014-M-4-5);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基金(DM2014SC12);四川测绘地理信息局2014年科技项目(J2014ZC15)~~ |
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| 摘 要： | 以城区居民地为例,提出了一种面向跨比例尺新旧地图数据变化发现与更新方法。首先,从产生效应、发生源头、依附上下文关系、更新策略4个方面剖析大比例尺新数据与小比例尺旧数据间的变化;在此基础上,引入叠置运算与数据增强方法构建变化信息提炼与融合模型,形成"叠置分析与变化发现→增量提取→增量融合更新"的技术框架;最后,通过试验数据验证表明了方法的有效性,以及可扩展性强、适于图层级批处理更新等优点。
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| 关 键 词： | 数据更新 变化发现 跨比例尺地图 地图叠置 数据增强 |
| 收稿时间： | 2015-06-09 |
| 修稿时间： | 2016-01-05 |
Change Detection and Updating by Using Map Overlay for Buildings on Multi-scale Maps |
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| YANG Min,AI Tinghua,YAN Xiongfeng,YANG Wei,ZHOU Xiaodong,ZHOU Qi.Change Detection and Updating by Using Map Overlay for Buildings on Multi-scale Maps[J].Acta Geodaetica et Cartographica Sinica,2016,45(4):466-474. |
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| Authors: | YANG Min AI Tinghua YAN Xiongfeng YANG Wei ZHOU Xiaodong ZHOU Qi |
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| Institution: | 1. School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China;2. State Key Laboratory of Geo-information Engineering, Xi'an 710054, China;3. The Second Surverying, Mapping and Geoinformation Engineering Institute of Sichuan Province, Chengdu 610100, ChinaAbstract |
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| Abstract: | This study aims to develop a method of change detection and updating for urban building features at smaller-scale maps from updated larger-scale maps. Firstly, an in-deeper and comprehensive analysis of changes between maps at different times and scales was discussed. Then, a technical framework of change extraction and updating was proposed based on the functions of map overlap and data enrichment. Finally, real-life data were used to verify the effectiveness of the proposed method, and results also showed that our method is flexible and suitable for layer-level updates. |
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| Keywords: | data updating change detection multi-scale maps map overlap data enrichment |
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