| 模糊类别制图的空间统计学方法 |
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| 引用本文： | 张景雄,Roger P Kirby.模糊类别制图的空间统计学方法[J].测绘学报,1998,27(2):166-176. |
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| 作者姓名： | 张景雄 Roger P Kirby |
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| 作者单位： | 1. 武汉测绘科技大学测绘遥感信息工程国家重点实验室,武汉,430070
2. 英国爱丁堡大学地理系 |
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| 摘 要： | 类别地图是地理信息系统（ＧＩＳ）应用中所利用的重要数据类别。这类数据可以从摄影测量和遥感技术得到。用摄影测量方法（影像判读）制作的类别地图常以点、线和多边形的离散目标形式描述，而遥感图像分类方法输出的类别地图以连通光栅块形式表达。不论哪一种情况，在每一个多边形或者光栅块（即制图单元）中仅允许单一类别，边界内部非均匀性和模糊形已经被“过滤”了。这样的类别地图沿用了古曲脆集合论，因为每个制图单元只允许
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| 关 键 词： | 模糊类别 制图 空间统计学 GIS |
A GEOSTATISTICAL APPROACH TO FUZZY CATEGORICAL MAPPING |
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| Zhang Jingxiong,Roger P Kirby.A GEOSTATISTICAL APPROACH TO FUZZY CATEGORICAL MAPPING[J].Acta Geodaetica et Cartographica Sinica,1998,27(2):166-176. |
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| Authors: | Zhang Jingxiong Roger P Kirby |
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| Abstract: | This paper documents principles of geostatistics, in particular, Indicator Kriging for deriving fuzzy categorical maps. This is followed by an empirical test, in which fuzzy maps of land cover were created by identifying well defined locations from polygonal land cover data plotted from aerial photographs and then applying indicator Kriging to estimate the probability vectors of finding all candidate classes at individual grid cells. As reference, proportion data of component land cover types in each grid cell were also calculated. Results confirm the theoretical strength and practical efficiency of indicator kriging method for deriving fuzzy categorical maps. |
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| Keywords: | Fuzzy categorical maps Geostatistics Indicator Kriging Semivariogram photogrammetry Land cover |
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