HIGH PRECISION TOPOGRAPHIC MAPPING AT CHANG”E-3 LANDING SITE WITH MULTI-SOURCE DATA
Chang”e-3 (CE-3) is the first lander and rover of China following the success of Chang”e-1 and Chang”e-2 (CE-2) orbiters.High precision topographic mapping can provide detailed terrain information to ensure the safety of the rover as well as to support scientific investigations.In this research,multi-source data are co-registered into a uniform geographic framework for high precision topographic mapping at the CE-3 landing site.CE-2 CCD images with 7 m- and 1.5 m- resolutions are registered using selfcalibration bundle adjustment method with ground control points (GCPs) selected from LRO WAC mosaic map and LOLA DTM.The trajectory of CE-3 descent images are recovered using self-calibration free net bundle adjustment,and then the topographic data is rectified by absolute orientation with GCPs selected from the adjusted CE-2 DEM and DOM.Finally,these topographic data are integrated into the same geographic framework for unified,multi-scale,high precision mapping of the CE-3 landing site.Key technologies and the mapping products of this research have been used to support the surface operations of CE-3 mission.
Planetary Mapping Multiresolution Bundle DEM/DTM Orthorectification
Y.Liu B.Liu B.Xu Z.Liu K.Di J.Zhou
State Key Laboratory of Remote Sensing Science,Institute of Remote Sensing and Digital Earth,Chinese Beijing Aerospace Control Center,Beijing 100094,China
国内会议
苏州
英文
157-161
2014-05-14（万方平台首次上网日期，不代表论文的发表时间）