Estimating soil erosion using MODIS and TM images based on support vector machine and a trous wavelet
文献类型：SCI/SSCI论文
| 作者 | Tian J.; Xia J. |
| 发表日期 | 2011 |
| 关键词 | TM MODIS Support vector machine A trous wavelet transform Soil erosion spatial-resolution improvement fusion |
| 英文摘要 | To date, there is little work concerning the application of fusing images with significantly different spectral and spatial resolutions. In this paper, a novel method based on support vector machine (SVM) is proposed to quickly estimate soil erosion using the fused results produced from fusing such multisensor images by a trous wavelet transform (AWT). In the proposed method, the AWT is used to derive the high-resolution vegetation coverage image (HVCI) while the SVM overlays the HVCI and the slope image to derive the soil erosion map. By taking MODIS and TM images as an example, the potential of the proposed method is evaluated both quantitatively and qualitatively. The results show that it is feasible to perform the fusion of MODIS and TM images and the soil erosion map produced from the fused images by the proposed method can be achieved with an accuracy level comparable to that solely from the TM images. The merging of MODIS and TM images partly solves the constrains associated with the TM data availability which is caused by the lower revisit frequency and narrower spatial coverage. (C) 2011 Elsevier B.V. All rights reserved. |
| 出处 | International Journal of Applied Earth Observation and Geoinformation |
| 卷 | 13 |
| 期 | 4 |
| 页 | 626-635 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0303-2434 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24229]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Tian J.,Xia J.. Estimating soil erosion using MODIS and TM images based on support vector machine and a trous wavelet. 2011. |
入库方式： OAI收割
来源：地理科学与资源研究所
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