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Research and Application Of Sparse Representation Classification of Remote Sensing Imagery Based on Multi-Feature Modeling

机译:基于多特征建模的遥感影像稀疏表示分类研究与应用

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Whether the selection of remote sensing features can be performed effectively will directly affect the quality of classification results. This paper proposes a multi-featured modeling strategy for the desert/grassland biome transition zone to improve the classification accuracy, taking Luoshan area of Ningxia province in China as the studying case and Landsat 8 OLI images of three periods as data source. The sparse representation based on dictionary learning is used as a classifier in order to select the combination of optimal features according to the multi-featured modeling strategy. It shows that the combination of spectrum, vegetation, terrain, architecture and water information can effectively improve the classification accuracy and reduce the classification uncertainty in the desert/grassland biome transition zone, and the best identified feature combinations includes b1 $sim$ b7, NDVI, DEM, NDBI, VAR(b5), MNDWI. Then, the statistical analysis of land cover changes in the study area from 2013 to 2015 was conducted.
机译:遥感特征的选择能否有效执行将直接影响分类结果的质量。本文以宁夏罗山地区为研究案例,以三期Landsat 8 OLI图像为数据源,为沙漠/草地生物群落过渡区提出了一种多特征的建模策略,以提高分类的准确性。基于字典学习的稀疏表示用作分类器,以便根据多特征建模策略选择最佳特征的组合。结果表明,光谱,植被,地形,建筑和水信息的组合可以有效地提高分类的准确性,减少沙漠/草地生物群落过渡带的分类不确定性,最佳识别的特征组合包括b1 $ \ sim $ b7, NDVI,DEM,NDBI,VAR(b5),MNDWI。然后,对研究区域2013年至2015年的土地覆盖变化进行了统计分析。

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