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基于电子地图的遥感影像自动粗定位研究
The Study of Automatic Rough-Location of Remote Sensing Image Based on Digital Maps
【摘要】 在GIS的基础上,提出了一种新的遥感图像自动定位方法.将GIS技术和遥感技术相结合,利用GIS软件从电子地图中提取出线状图层一定范围内各点的经纬度坐标,将这些信息作为参考源,同时对遥感图像进行二值化和边沿提取,将提取出来的遥感图像的线状特征作为目标源,然后在分辨率匹配和投影变换的基础上对二者进行匹配,引入Hausdorff距离作为相似性测度,最后获取遥感图像的定位信息.
【Abstract】 We introduce an automatic method to roughly locate the remote sensing images. By combining GIS and RS techniques, the GIS software is used to extract the longitude and latitude of points in the interesting area of the line layer in digital maps. We take the information as our reference. At the same time, the line features from remote sensing image are extracted using threshold and edge extraction techniques. We use this information as our target. On the base of resolution match and projection transformation. We match the reference and target, by introducing Horsdorff distance as the similitude measure, we acquire the location information of the remote sensing image.
【Key words】 feature extraction; image matching; Hausdorff distance; digital map; image location;
- 【文献出处】 测试技术学报 ,Journal of Test and Measurement Technology , 编辑部邮箱 ,2005年01期
- 【分类号】TP751
- 【被引频次】6
- 【下载频次】202