A GEOCODING METHOD FOR SAR IMAGE BASED ON TIN LOOKUP TABLE | |
Chen, Jiwei ; Zeng, Qiming ; Jiao, Jian ; Huang, Jianghui ; Huang, Junsong | |
2016 | |
关键词 | SAR TIN geocoding lookup table |
英文摘要 | A geocoding method for SAR image based on Triangulated Irregular Network (TIN) lookup table is proposed in this paper. Firstly, TIN DEM is generated from Grid DEM. Then, each node in TIN DEM is geocoded by Range-Doppler model to produce a TIN lookup table. Finally, geocoded image is resampled by TIN lookup table. Experimental results show TIN lookup table can reduce file size with losing less precision, which compared with original Grid lookup table. Although TIN lookup table takes some time to create TIN DEM from Grid DEM, it takes less time than original lookup table in geocoding process. So it could save running time for large number of SAR images geocoding in the same area. TIN lookup table can balance between precision and file size, when its height tolerance approximately is less than accuracy of DEM products.; National Natural Science Foundation of China [41571337]; CPCI-S(ISTP); 5998-6001 |
语种 | 英语 |
出处 | 36th IEEE International Geoscience and Remote Sensing Symposium (IGARSS) |
内容类型 | 其他 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/459634] ![]() |
专题 | 地球与空间科学学院 |
推荐引用方式 GB/T 7714 | Chen, Jiwei,Zeng, Qiming,Jiao, Jian,et al. A GEOCODING METHOD FOR SAR IMAGE BASED ON TIN LOOKUP TABLE. 2016-01-01. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论