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高分辨率遙感影像農(nóng)田林網(wǎng)自動(dòng)識別
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國家高技術(shù)研究發(fā)展計(jì)劃(863計(jì)劃)項(xiàng)目(2013AA10230103)


Automatic Recognition of Farmland Shelterbelts in High Spatial Resolution Remote Sensing Data
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    摘要:

    以0.5m的GeoEye-1衛(wèi)星遙感影像為數(shù)據(jù)源,,充分利用影像的紋理和光譜信息,,研究農(nóng)田林網(wǎng)高分辨率遙感自動(dòng)識別方法,。首先利用歸一化差值植被指數(shù)(NDVI)和二維熵值構(gòu)建分類決策樹,,并結(jié)合輔助數(shù)據(jù)初步提取出帶狀的農(nóng)田林網(wǎng),;其次對該結(jié)果進(jìn)行形態(tài)學(xué)處理,,得到連續(xù),、細(xì)化的農(nóng)田林網(wǎng)識別結(jié)果。選取甘肅省臨澤縣河西走廊中部巴丹吉林沙漠南緣綠洲的部分區(qū)域?yàn)檠芯繀^(qū),,進(jìn)行實(shí)例驗(yàn)證,,結(jié)果表明,采用本文構(gòu)建的方法,,農(nóng)田林網(wǎng)的自動(dòng)識別精度均在92%以上,,平均精度達(dá)到92.97%,空間位置吻合度均在86%以上,,平均吻合度達(dá)到93.13%,,滿足土地整治等工程監(jiān)管的實(shí)際需求。該方法可為農(nóng)田林網(wǎng)建設(shè)及相關(guān)工程監(jiān)管提供科學(xué)支撐,。

    Abstract:

    Farmland shelterbelt is a major component of land reclamation, farmland protection and the engineering construction of ecological environmental protection. And the information acquisition of farmland shelterbelt is an important approach to supervising engineering, such as land reclamation and so on. The automatic recognition method of farmland shelterbelts was explored by taking full advantages of the spectral and morphological features in high spatial resolution remote sensing data based on GeoEye-1 satellite remote sensing image (0.5m-resolution). Firstly, the classification decision tree was established by making use of the normalized difference vegetation index (NDVI) and two-dimensional entropy of GeoEye-1 satellite remote sensing image. Secondly,,the preliminary extraction results of farmland shelterbelts were found out by combining with the auxiliary data. Thirdly, the preliminary extraction results were processed by morphology operations, including expansion, hole filling, de-noising and thinning, to get the continuous and refined extraction results. The partial region of the oasis in the southern margin of Badain Jaran Desert in Linze County, Gansu Province was taken as a typical study area for instance validation, which is located in the central Hexi Corridor. The experimental result indicated that by using the method the automatic recognition precision of farmland shelterbelts were all above 92% and the average accuracy reached 92.97%, the spatial coincidences were all above 86% and the average anastomosis reached 93.13%. So it can satisfy the actual demand in supervising engineering, such as land reclamation and so on. The method can provide scientific support for the farmland shelterbelts construction and the related engineering supervision.

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呂雅慧,張超,鄖文聚,李鵬山,桑玲玲,陳英義.高分辨率遙感影像農(nóng)田林網(wǎng)自動(dòng)識別[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2018,49(1):157-163. Lü Yahui, ZHANG Chao, YUN Wenju, LI Pengshan, SANG Lingling, CHEN Yingyi. Automatic Recognition of Farmland Shelterbelts in High Spatial Resolution Remote Sensing Data[J]. Transactions of the Chinese Society for Agricultural Machinery,2018,49(1):157-163.

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  • 收稿日期:2017-05-07
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  • 在線發(fā)布日期: 2018-01-10
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