从新的VIR传感器生成DEM: IKONOS, ASTER和Landsat-7

IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217) Pub Date : 2001-07-09 DOI:10.1109/IGARSS.2001.976698

T. Toutin

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引用次数: 17

摘要

由于新发射的卫星图像可以用于生成立体图像，因此DEM生成是一个活跃的研发课题。利用CCRS开发的共平面方程模型和PCI开发的自动匹配方法，利用新的VIR立体数据生成dem。IKONOS高分辨率影像的精度为4.9 m, ASTER和Landsat-7 ETM/sup +/中分辨率影像的精度分别为33 m和101 m。同样的1像素匹配精度，由于B/H比较小，仅为0.15,Landsat的匹配效果较差。

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DEM generation from new VIR sensors: IKONOS, ASTER and Landsat-7

DEM generation is a living R&D topic since new-launched satellite images can be used to generate stereoscopic images. Using a coplanarity equation model developed at CCRS and an automatic matching method developed at PCI, DEMs are generated with new VIR stereo data. Accuracy of 4.9 m with high-resolution IKONOS images, and 33 m and 101 m with medium-resolution ASTER and Landsat-7 ETM/sup +/ images respectively are obtained. The same matching accuracy of one-pixel is translated into worse results with Landsat due to a small B/H ratio of 0.15.

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IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)

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