李博伦,遆超普,颜晓元

• 1:中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室
• 2:中国科学院大学

摘要(Abstract)：

针对Landsat 8陆地成像仪影像,该文提出了一种缨帽变换系数的推算方法。利用准同步的Landsat ETM+影像缨帽变换结果为目标值,采用普鲁克算法对不同地理分布下的陆地成像仪影像样本点的主成分轴分别进行旋转,得到相应的初始变换系数;通过广义普鲁克分析对所得初始变换系数进行平均化,并以格拉姆-施密特算法保持其正交性,最终得到基于陆地成像仪大气表观反射率数据的缨帽变换系数。验证结果表明,与现有陆地成像仪变换系数相比,该文提出的缨帽变换精度相对较高,误差较小,变换后的不同地物覆盖类型具有更好的可分性。

关键词(KeyWords)： 缨帽变换;主成分分析;普鲁克分析;格拉姆-施密特正交化;Landsat卫星数据

Abstract:

Keywords:

基金项目(Foundation): 科技部国际科技合作项目(2012DFG90290)

作者(Author): 李博伦,遆超普,颜晓元

DOI: 10.16251/j.cnki.1009-2307.2016.04.021

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