遥感图像在土地利用更新中的应用研究以里下河地区防汛信息系统(LXFPGIS)为例

以里下河地区防汛信息系统为例 ,阐述了利用 TM遥感图像进行 GIS土地利用更新的试验研究。采用了最大似然分类法和模糊分类法两种监督分类方法进行分类试验。提出了两种提高训练区采样效率的基于 GIS本底数据的采样方法 ,即半人工采样方法和全自动分类区直方图提取法。对上述方法分别做了土地利用分类试验 ,对分类结果进行了分析比较 ,并作出了相应的结论。

Research on the Application of Remote Sensing Images in Landuse Renewal-with the Flood Prevention GIS of Lixiahe Area (LXFPGIS) as an Example

This paper discussed a testing research on the landuse renewal with the GIS data of LXFPGIS as a testing example,using TM remote sensing images.Maximum Likelihood and Fuzzy Information Classifiers were used in the testing research.Two sampling methods for the classification training areas based on old GIS data were developed to increase the sampling efficiency,they are the semimanual sampling method and the automatic extraction method of the histograms for the classification areas.Tests of the landuse classification were completed by the methods mentioned above.The results of the tests were analyzed and compared.The conclusions were made.