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GIS中面元的误差熵模型

论文摘要

根据整个线元边缘分布的平均信息熵确定了“ε 带”的宽度 ,提出了线元的平均误差熵带模型 ,进一步扩展到面元的误差熵环模型。误差熵环的带宽取构成边界线的各线段误差熵的加权平均值。最后通过算例比较了面元的误差熵环和误差环模型 ,绘出了它们的可视化图形 ,得出了一些有益的结论。

In order to measure the area unit s positional uncertainty, the average entropy band of line segments is firstly presented based on average entropy of the whole line in this paper, and then is extended to error entropy donut of area unit. The band width of error entropy donut can be determined by weighted average error entropy of all line segments. A comparison between error entropy donut and existing error donut is given and their results are visualized and some conclusion is drawn. 

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