| Orthorectification of IKONOS and Impact of Different Resolution DEM |
| |
| 作者姓名： | XU Junfeng HUANG Jingfeng |
| |
| 作者单位： | Institute of Agricultural Remote Sensing and Information Technology, Zhejiang University, Hangzhou 310029,China |
| |
| 基金项目： | 国家高技术研究发展计划(863计划)，浙江省自然科学基金 |
| |
| 摘 要： | IKONOS image has been wildly used in city planning, precision agriculture and emergence response. However, the accuracy of IKONOS Geo product is limited due to distortion caused by terrain relief. Orthorectification was performed to remove the distortion and the impact of different DEM on orthorectification were evaluated. 38 ground control points （GCPs） and 25 independent check points （ICPs） were collected. DEMs were generated from 1 ： 10 000 and 1 ： 50 000 topographic maps. Results show that RMS error at the check points is 1. 554 0 m using DEM generated from 1 ： 10 000 topographic map, which can meet the accuracy requirement of IKONOS Precision product （1.9 m RMSE）. While RMS error is 2. 572 4 m using DEM generated from 1 ： 50 000 topographic map.
|
| 关 键 词： | 数字高程模型 卫星测量 DEM 地理信息系统 |
| 文章编号： | 1009-5020（2006）02-108-04 |
| 收稿时间： | 2005-12-28 |
Orthorectification of IKONOS and impact of different resolution DEM |
| |
| XU Junfeng HUANG Jingfeng.Orthorectification of IKONOS and Impact of Different Resolution DEM[J].Geo-Spatial Information Science,2006,9(2):108-111. |
| |
| Authors: | Xu Junfeng PhD candidate Huang Jingfeng |
| |
| Institution: | XU Junfeng HUANG Jingfeng |
| |
| Abstract: | IKONOS image has been wildly used in city planning, precision agriculture and emergence response. However, the accuracy of IKONOS Geo product is limited due to distortion caused by terrain relief. Orthorectification was performed to remove the distortion and the impact of different DEM on orthorectification were evaluated. 38 ground control points (GCPs) and 25 independent check points (ICPs) were collected. DEMs were generated from 1∶10 000 and 1∶50 000 topographic maps. Results show that RMS error at the check points is 1.554 0 m using DEM generated from 1∶10 000 topographic map, which can meet the accuracy requirement of IKONOS Precision product (1.9 m RMSE). While RMS error is 2.572 4 m using DEM generated from 1∶50 000 topographic map. |
| |
| Keywords: | IKONOS orthorectify DEM |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
