高分影像地形輻射校正典型模型實(shí)驗(yàn)與分析
發(fā)布時(shí)間:2018-07-22 11:53
【摘要】:鑒于目前地形輻射校正研究多集中于中低分辨率影像,對(duì)高空間分辨率影像的研究較少,對(duì)比實(shí)驗(yàn)和分析了4種常用地形輻射校正模型的校正效果。以四川省3個(gè)不同山區(qū)作為實(shí)驗(yàn)區(qū),選取WorldView-2、高分一號(hào)、GeoEye-1高空間分辨率影像作為源數(shù)據(jù),對(duì)比實(shí)驗(yàn)和分析了C校正模型、矩匹配方法、Shepherd模型和Sandmeier模型等4種常用地形輻射校正模型的校正效果,并通過目視判讀和定量分析對(duì)校正結(jié)果進(jìn)行評(píng)價(jià)。結(jié)果表明,在缺乏高精度DEM和大氣參數(shù)的情況下,C校正模型和矩匹配方法2種經(jīng)驗(yàn)?zāi)P偷男UY(jié)果整體優(yōu)于Shepherd模型和Sandmeier模型2種物理模型。
[Abstract]:In view of the fact that the research on topographic radiation correction is mostly focused on low and low resolution images and less on high spatial resolution images, the correction effects of four kinds of commonly used terrain radiometric correction models are compared and analyzed. Taking three different mountain areas in Sichuan Province as experimental areas and selecting WorldView-2 and GeoEye-1 high spatial resolution images as source data, the C-correction model is compared and analyzed. The moment matching method is used to evaluate the correction results of four common topographic radiometric correction models, such as Shepherd model and Sandmeier model. The correction results are evaluated by visual interpretation and quantitative analysis. The results show that in the absence of high precision Dem and atmospheric parameters, the correction results of the two empirical models are better than those of Shepherd model and Sandmeier model.
【作者單位】: 四川省遙感信息測繪院;
【基金】:四川省遙感信息測繪院雷達(dá)測圖與監(jiān)測技術(shù)聯(lián)合實(shí)驗(yàn)室開放基金(SYS2015KFJJ03)
【分類號(hào)】:P237
本文編號(hào):2137379
[Abstract]:In view of the fact that the research on topographic radiation correction is mostly focused on low and low resolution images and less on high spatial resolution images, the correction effects of four kinds of commonly used terrain radiometric correction models are compared and analyzed. Taking three different mountain areas in Sichuan Province as experimental areas and selecting WorldView-2 and GeoEye-1 high spatial resolution images as source data, the C-correction model is compared and analyzed. The moment matching method is used to evaluate the correction results of four common topographic radiometric correction models, such as Shepherd model and Sandmeier model. The correction results are evaluated by visual interpretation and quantitative analysis. The results show that in the absence of high precision Dem and atmospheric parameters, the correction results of the two empirical models are better than those of Shepherd model and Sandmeier model.
【作者單位】: 四川省遙感信息測繪院;
【基金】:四川省遙感信息測繪院雷達(dá)測圖與監(jiān)測技術(shù)聯(lián)合實(shí)驗(yàn)室開放基金(SYS2015KFJJ03)
【分類號(hào)】:P237
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