CAJ | 학술논문

本文评价了运用ASTER和LANDSAT ETM+数据进行岩性制图的性能.分别利用ASTER数据不同波段区图像及其组合,以及ETM+数据进行岩性分类,并探讨了将ASTER和ETM+数据叠加在一起进行了岩性分类;利用现有地质图对所有分类结果进行了定量评价.结果表明,ASTER数据不同波段的岩性识别能力不同,并且较ETM+数据能更准确地识别岩性.更重要的是,把ASTER与ETM+数据结合在一起进行岩性分类,可获得比用任一数据单独分类更高的分类精度,表明二者的光谱特征具有一定的互补性.
본문평개료운용ASTER화LANDSAT ETM+수거진행암성제도적성능.분별이용ASTER수거불동파단구도상급기조합,이급ETM+수거진행암성분류,병탐토료장ASTER화ETM+수거첩가재일기진행료암성분류;이용현유지질도대소유분류결과진행료정량평개.결과표명,ASTER수거불동파단적암성식별능력불동,병차교ETM+수거능경준학지식별암성.경중요적시,파ASTER여ETM+수거결합재일기진행암성분류,가획득비용임일수거단독분류경고적분류정도,표명이자적광보특정구유일정적호보성.
The performance of lithologic mapping using both ASTER and LANDSAT ETM + data was evaluated in this paper. Lithologic classifications using different spectral regions of ASTER data, different combination of them, and ETM + data were performed respectively, especially using all ASTER and ETM + bands. The results showed that different spectral regions of ASTER data produced different mapping accuracies. ASTER data obtained better performance in lithologic classification than that of using ETM + data. Classification with all ASTER and ETM + bands combined achieved high overall accuracy and Kappa coefficient, compared to those obtained with ASTER data or ETM + data alone, which may indicate that both data provide complementary information for lithologic discrimination.