Rigorous Geometric Modeling and Validation of ALOS PRISM Imagery
Based on the principle of ALOS/PRISM, a rigorous geometric model is established by imagery ancillary data. This progress can be seen as a series of coordinate system transformation. Then we use the rigorous geometric model to achieve for direct georeferencing of ALOS/PRISM imagery. Experimental results show that there would be constant systematic errors existed in side watch angle. In order to eliminate the systematic error, a new matrix was introduced. It is used to rectify the look direction in ECR coordinates. Once the systematic errors are eliminated, the result is improved noticeably. Accuracy is better than 5m for the planar position and 3m for the altitude It shows that the improved rigorous geometric model is very stable and the accuracy of direct georeferencing is also very ideal. However, in different areas, the accuracy is a little different. The result shows that the change of side watch angle may act on the final orientation accuracy.
ALOS PRISM rigorous sensor model object location of no ground control accuracy
Lei Rong Fan Dazhao Ma Qiuhe Liu Chubin
Institute of Surveying and Mapping, Informing Engineering University,Zhengzhou 450052,China; Institute of Surveying and Mapping, Informing Engineering University, Zhengzhou 450052,China;
国际会议
哈尔滨
英文
447-451
2011-01-18（万方平台首次上网日期，不代表论文的发表时间）