Geometric Rectification of Satellite Imagery with Minimal Ground Control Using Space Oblique Mercator Projection Theory
文献类型：SCI/SSCI论文
| 作者 | Ren L. C. ; Clarke K. C. ; Zhou C. H. ; Ding L. ; Li G. Q. |
| 发表日期 | 2010 |
| 关键词 | Space oblique projection geometric rectification ground control point map projection |
| 英文摘要 | Precise geometric rectification of satellite imagery normally requires knowing the geodetic location of features identifiable in the image, called ground control points (GCPs). In many cases, however, it is difficult to compute a precise geometric rectification because too few GCPs are available due to the lack of ground data or the nature of the terrain (lakes or oceans, deserts, continuous forest, etc). When too few GCPs are available, Space Oblique Mercator (SOM) projection theory can be applied to provide continuous precise geometric rectification of image tiles or scenes. We use GCPs from adjacent, prim; or subsequent image tiles to create the projection geometry for the intermediate tiles. Ir. this paper, we report on the development of a procedure to implement the use of ancillary GCPs in georectifying under-controlled imagery. To validate our method, a test example was computed using 1999 data obtained by a panchromatic camera on board the Indian Remote Sensing satellite IRS-1C with a spatial resolution of 5.8 m. The testing showed that the precision of geometric rectification in a tile without GCPs is within three pixels (about 17.4 m), and the speed of computation is faster than with traditional methods. |
| 出处 | Cartography and Geographic Information Science |
| 卷 | 37 |
| 期 | 4 |
| 页 | 261-272 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1523-0406 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/23146]  |
| 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 | Ren L. C.,Clarke K. C.,Zhou C. H.,et al. Geometric Rectification of Satellite Imagery with Minimal Ground Control Using Space Oblique Mercator Projection Theory. 2010. |
入库方式： OAI收割
来源：地理科学与资源研究所
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