本文關(guān)鍵詞：包絡(luò)線去除的丘陵地區(qū)遙感影像陰影信息重建　出處：《遙感學(xué)報》2017年04期 　論文類型：期刊論文

  更多相關(guān)文章： 陰影校正 包絡(luò)線去除 信息增強(qiáng) Landsat OLI影像 西南丘陵

【摘要】：中國西南丘陵常態(tài)山和喀斯特山交錯分布,遙感影像普遍存在山體陰影,分布零散且無規(guī)律,基于DEM的地形校正模型(C校正等)雖然算法成熟、易于操作,但在復(fù)雜地形區(qū)存在誤差。引入基于相似像元包絡(luò)線的陰影校正方法(CR校正),按照陰影提取、包絡(luò)線去除、相似像元尋找和陰影亮度重建的步驟,采用西南丘陵地區(qū)Landsat 8 OLI影像進(jìn)行驗證實(shí)驗。結(jié)果表明:CR校正后,陰影區(qū)的視覺特征與鄰近非陰影區(qū)趨于一致,陰影像元亮度有明顯提升;校正后影像主要波段標(biāo)準(zhǔn)差減小,與非陰影區(qū)參考光譜的相對均方根誤差在2.919%以內(nèi),最低僅為0.516%;自動分類精度從43.59%提高到61.57%,CR校正有效提高了有陰影的丘陵地區(qū)遙感影像質(zhì)量。
[Abstract]:Southwest Hilly Chinese normal hill and Karst Hill staggered distribution, remote sensing image exists hillshade, scattered and irregular, DEM based terrain correction model (C correction) although the mature algorithm, easy to operate, but there are errors in the complex terrain area. Based on the introduction of similar pixel envelope shading correction method (CR correction), in accordance with the shadow extraction, envelope removal, similar pixel search and shadow brightness reconstruction steps, to verify the experiment in hilly areas of Southwest China Landsat 8 OLI image. The results showed that after CR correction, shadow visual features and adjacent non shadow areas tend to be consistent, the shadow pixel brightness is improved after correction; image main band the standard deviation is reduced, and the non shadow area reference spectra and the relative root mean square error of less than 2.919%, the minimum is only 0.516%; the classification accuracy increased from 43.59% to 61.57%, CR can effectively improve the correction The quality of remote sensing image in hilly area of shadows.

【作者單位】： 西南大學(xué)地理科學(xué)學(xué)院;成都信息工程大學(xué)資源環(huán)境學(xué)院;
【基金】：國家科技支撐計劃項目(編號:2013BAJ11B02) 重慶市社會科學(xué)規(guī)劃項目(編號:2016YBGL131)~~
【分類號】：TP751
【正文快照】： 引用格式:張?zhí)?廖和平,崔林林.2017.包絡(luò)線去除的丘陵地區(qū)遙感影像陰影信息重建.遙感學(xué)報,21(4):604 613Zhang T,Liao H P and Cui L L.2017.Mountainous shadow information restoration based on the continuum中國西南丘陵地區(qū)的遙感影像普遍存在大量山體陰影,分布零散且

【參考文獻(xiàn)】

相關(guān)期刊論文 前9條

1 溫兆飛;吳勝軍;陳吉龍;呂明權(quán);姜毅;;輻射特征支持下的城市高分影像陰影校正[J];遙感學(xué)報;2016年01期

2 段光耀;宮輝力;李小娟;陳蓓蓓;;結(jié)合特征分量構(gòu)建和面向?qū)ο蠓椒ㄌ崛「叻直媛市l(wèi)星影像陰影[J];遙感學(xué)報;2014年04期

3 穆悅;安裕倫;王U，

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