Assessment of different topographic corrections in Landsat-TM data for mapping vegetation types (2003)

被引:362
|
作者
Riaño, D [1 ]
Chuvieco, E [1 ]
Salas, J [1 ]
Aguado, I [1 ]
机构
[1] Univ Alcala de Henares, Dept Geog, Madrid 28801, Spain
来源
关键词
Landsat Thematic Mapper (TM); topographic correction; vegetation mapping;
D O I
10.1109/TGRS.2003.811693
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Different methods for topographic correction of Landsat Thematic Mapper images have been assessed in the context of mapping vegetation types. The best results were obtained with a variation of the C method, which takes into account the overcorrection of low illuminated slopes by the original C method. The performance of this method was tested using two criteria: the changes in the spectral characteristics of the image and the reduction in standard deviation of each vegetation type after the correction.
引用
收藏
页码:1056 / 1061
页数:6
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