| 数字化地图的自动接边及其精度 |
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| 引用本文： | 华慧,童小华. 数字化地图的自动接边及其精度[J]. 同济大学学报(自然科学版), 2000, 28(1): 33-36 |
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| 作者姓名： | 华慧 童小华 |
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| 作者单位： | 同济大学测量与国土信息工程系上海 200092 |
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| 基金项目： | 国家自然科学基金资助项目(49671065) |
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| 摘 要： | 按照地物要素分类接边的方法，实现了在数字化地图中相领图幅的自动接边，该方法分三步完成接边：接边要素对的提取；接边要素对自动分类接边；分幅剪，同时还探讨了该方法产生的接边精度的分析和计算，从而得出接边图面精度指标为０．３mm的结论，这可作为衡量地图数字化质量的一个量化指标。
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| 关 键 词： | 地图数字化 自动接边 接边精度 质量控制 地理信息系统 |
| 文章编号： | 0253-374(2000)01-0033-04 |
| 修稿时间： | 1998-09-14 |
Automatic Edge Match of Digital Maps |
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| HUA Hui,TONG Xiao-hua. Automatic Edge Match of Digital Maps[J]. Journal of Tongji University(Natural Science), 2000, 28(1): 33-36 |
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| Authors: | HUA Hui TONG Xiao-hua |
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| Abstract: | It is a great difficulty of automatic edge match of the adjacent digital maps in capture for GIS. This paper presents a newly-developed method, which can be realized in practice. The method, based on element classification, is accomplished with three steps: extraction of element pairs for map edge match; automatic map edge match based on element pairs classification; map chipping and merging. Moreover, the paper also derives the model for estimation accuracy of edge match in this method. In conclusion, the error indicator of edge match is 0.3 mm, which can be used for evaluating edge match quality of digital map. |
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| Keywords: | map digitization automatic edge match match accuracy quality control |
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