| 顾及双线道路特征的变化信息提取方法 |
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| 引用本文： | 张浩,武芳,巩现勇,张俊涛,李靖涵.顾及双线道路特征的变化信息提取方法[J].武汉大学学报(信息科学版),2018,43(5):798-805. |
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| 作者姓名： | 张浩 武芳 巩现勇 张俊涛 李靖涵 |
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| 作者单位： | 1.信息工程大学地理空间信息学院, 河南 郑州, 450052 |
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| 基金项目： | 国家自然科学基金41471386国家自然科学基金41101362国家自然科学基金41301524信息工程大学地理空间信息学院学位论文创新与创优基金XS201509 |
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| 摘 要： | 在城市双线道路数据更新的需求下，通过分析已有要素匹配方法，提出了一种顾及双线道路特征的单、双线道路匹配方法，用于提取城市双线道路增量更新中的变化信息。为保证双线道路的整体性，将双线道路多边形作为匹配对象，通过分析旧单线道路与多边形的方向、长度以及位置关系设计了单、双线道路匹配综合指标计算模型；然后，根据匹配综合指标确定单、双线道路匹配关系并提取变化信息。实验结果表明，该方法能够较好地满足双线道路更新中变化信息提取的要求，具有一定的实用性。
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| 关 键 词： | 双线道路 增量更新 线-面关系 匹配相似度 变化信息提取 |
| 收稿时间： | 2015-12-16 |
A Method of Change Detection Considering Characteristics of Dual-Carriageway Roads |
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| Institution: | 1.Institute of Geographical Spatial Information, Information Engineering University, Zhengzhou 450052, China2.Suzhou Industrial Park Surveying, Mapping and Geoinformation Co., Ltd., Suzhou 215027, China3.Xi'an Information Technology of Surveying and Mapping Terminus, Xi'an 710000, China |
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| Abstract: | Change detection is an essential step in spatial data updating. By analyzing existing matching methods, this paper proposes a method for single-and dual-carriageway roads matching considering dual-carriageway road characteristics to adapt the incremental updating of dual-carriageway roads, it is able to extract change information utilizing this method. For the completeness of dual-carriageway roads, the method selects polygons composed of dual-carriageway roads as matching objects, and designs a calculation model about overall single-and dual-carriageway roads matching indicator based on analyzing orientation, length and location relation of old single-carriageway road and polygon. Finally, change information is extracted with the matching relation confirmed by overall matching indicator. Through comparative experiments and analysis, it is proved that this the method can realize changing information extraction in incremental updating of urban dual-carriageway roads, and is really of practical significance. |
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