An object-based approach for two-level gully feature mapping using high-resolution DEM and imagery: a case study on hilly loess plateau region, China
作者: Kai LiuHu DingGuoan TangA-Xing ZhuXin YangSheng JiangJianjun Cao
作者单位: 1Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Education
2State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province)
3Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application
4University of Wisconsin-Madison
5Key Laboratory of Virtual Geographic Environment (Nanjing Normal University), Ministry of Edu
刊名: Chinese Geographical Science, 2017, Vol.27 (3), pp.415-430
来源数据库: Springer Journal
DOI: 10.1007/s11769-017-0874-x
关键词: Object-based image analysisGully featureHierarchical mappingGully erosionDigital Elevation Model (DEM)
英文摘要: Gully feature mapping is an indispensable prerequisite for the motioning and control of gully erosion which is a widespread natural hazard. The increasing availability of high-resolution Digital Elevation Model (DEM) and remote sensing imagery, combined with developed object-based methods enables automatic gully feature mapping. But still few studies have specifically focused on gully feature mapping on different scales. In this study, an object-based approach to two-level gully feature mapping, including gully-affected areas and bank gullies, was developed and tested on 1-m DEM and Worldview-3 imagery of a catchment in the Chinese Loess Plateau. The methodology includes a sequence of data preparation, image segmentation, metric calculation, and random forest based classification. The...
原始语种摘要: Gully feature mapping is an indispensable prerequisite for the motioning and control of gully erosion which is a widespread natural hazard. The increasing availability of high-resolution Digital Elevation Model (DEM) and remote sensing imagery, combined with developed object-based methods enables automatic gully feature mapping. But still few studies have specifically focused on gully feature mapping on different scales. In this study, an object-based approach to two-level gully feature mapping, including gully-affected areas and bank gullies, was developed and tested on 1-m DEM and Worldview-3 imagery of a catchment in the Chinese Loess Plateau. The methodology includes a sequence of data preparation, image segmentation, metric calculation, and random forest based classification. The...
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影响因子:0.5 (2012)

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关键词翻译
关键词翻译
  • feature 结构元件
  • China 中国
  • imagery 成象
  • gully 冲沟
  • mapping 映象
  • segmentation 分段
  • object 目标
  • hierarchical 分级
  • topographic 地形的
  • automatic 自动的