| 基于ETM~+和ASTER近红外波段的水体信息提取对比 |
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| 引用本文： | 陆慧,曹明.基于ETM~+和ASTER近红外波段的水体信息提取对比[J].地理空间信息,2013(3):131-134. |
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| 作者姓名： | 陆慧 曹明 |
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| 作者单位： | 1. 合肥工业大学计算机与信息学院，安徽合肥230009; 安徽财贸职业学院电子信息系，安徽合肥230601
2. 河海大学地球科学与工程学院,江苏南京,210098 |
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| 基金项目： | 安徽省自然科学基金资助项目(090412046)；安徽高校省级自然科学研究重点资助项目(KJ2007A063，KJ2008A058)。 |
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| 摘 要： | 利用Landsat ETM+和ASTER近红外波段数据进行了水体信息提取,然后利用知识规则对2种提取结果进行进一步分类,并分析了波谱分辨率的差异对水体信息提取结果的影响。实验表明,基于Landsat ETM+数据的水体提取总体精度为82.4%,基于ASTER数据的水体信息提取结果总体精度为92.4%;在空间分辨率相同情况下,波谱分辨率的提高可以有效地提高水体信息提取的精度。
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| 关 键 词： | LandsatETM+ ASTER 空间特征 水体信息 知识规则 南京 |
Discrepancy Between the Results of Water-body Extraction Based on ETM~+ and ASTER |
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| Abstract: | In this paper,the near-infrared bands of Landsat ETM + and ASTER remotely sensed data were chosen for the extraction of water bodies.The results of extraction from two data sources further improved and categorized by using GIS rule sets.The final results of water body information were compared and the discrepancy was analyzed.The overall accuracies of extraction on Landsat ETM + imagery and ASTER imagery were 82.4%,92.4% respectively.The results show that an increase of spectral resolution can improve accuracy of extraction of water bodies greatly in the same spatial resolution.+ |
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| Keywords: | Landsat ETM + ASTER spatial features water body information knowledge rule Nanjing |
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