基于约束条件的线要素化简算法质量评估  

Quality assessment of linear features’ simplification algorithms based on constraint conditions

作　　者：朱鲲鹏[1] 武芳[1] 陈波[1] 薛本新[2] 

机构地区：[1]解放军信息工程大学测绘学院,郑州450052 [2]总参测绘信息中心,北京100088

出　　处：《测绘科学》2007年第3期28-30,共3页Science of Surveying and Mapping

基　　金：国家自然科学基金(40471115);国家自然科学基金(40671162)

摘　　要：随着制图综合质量评价越来越受重视,对地图要素中所占比例最大的线要素的化简算法进行质量评估变得十分必要。结合线化简算法自身的特点,从几何和语义两方面总结了线要素在化简过程容易出现的问题,在分析线要素化简应满足的约束条件的基础上,提出对算法实施评估的评价指标,并选择水平中误差等三种评价指标对三种线化简算法具体实施质量评估。试验结果证明了本文提出的评估方法的科学性。With more and more importance are put on the quality assessment of cartographic generalization, it's quite necessary to evaluate the quality of linear features' simplification algorithms, which is the most proportion of geographic features. Considering the characteristics of linear features' simplification algorithms, the problems on geometric and semantic aspects easily appearing in the process of linear features' simplification are summarized. Based on analyzing the constraint conditions that linear features are confined, initial evaluating figures to the algorithms are given, and quality assessment is implemented on three chosen algorithms by the methods of horizontal middle error and so on. According to experiments’ results, such method is scientific.

关 键 词：化简 约束条件 评价指标 质量评估 

分 类 号：P282[天文地球—地图制图学与地理信息工程]