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Using Decision Tree Model to Extract Paddy Rice Information from Multi-temporal TM Images
Authors
平博
朱良
+3 more
杜云艳
苏伟光
苏奋振
Publication date
15 June 2013
Publisher
Abstract
决策树模型的多时相TM影像的小尺度水稻信息提取在我国还鲜有研究。为此,本文利用水稻生长在潮湿土壤这一特性,选取TM影像中对植物含水量和土壤湿度反应敏感的短波红外波段(1.55~1.75μm),以及反映植物覆盖率、植物长势的红光波段(0.62~0.69μm)和近红外波段(0.76~0.96μm),计算水稻移栽期、灌浆期和成熟期3个时期的归一化植被指数(NDVI)和土壤含水量指数(LSWI),提出一种时间差异的决策树水稻提取模型,以唐山市滦南县南部区域为例开展了研究。经过野外实地验证表明:该模型能有效区分出水域、玉米和菜地等较易与水稻混淆的地物,水稻提取的生产者精度和用户精度分别为95.18%和9..
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Last time updated on 18/09/2018