文章基本信息

标题：Entropy error model of planar geometry features in GIS
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作者：Li Dajun ; Guan Yunlan ; Gong Jianya 等
期刊名称：Geo-spatial Information Science
印刷版ISSN：1009-5020
电子版ISSN：1993-5153
出版年度：2003
卷号：6
期号：2
页码：20-24
DOI：10.1007/BF02826749
出版社：Taylor and Francis Ltd
摘要：Positional error of line segments is usually described by using “g-band”, however, its band width is in relation to the confidence level choice. In fact, given different confidence levels, a series of concentric bands can be obtained. To overcome the effect of confidence level on the error indicator, by introducing the union entropy theory, we propose an entropy error ellipse index of point, then extend it to line segment and polygon, and establish an entropy error band of line segment and an entropy error donut of polygon. The research shows that the entropy error index can be determined uniquely and is not influenced by confidence level, and that they are suitable for positional uncertainty of planar geometry features.
关键词：union entropy; entropy error ellipse; entropy error band; entropy error donut