EVALUATION OF ZY-3 FOR DSM AND ORTHO IMAGE GENERATION

被引：0
|
作者：
d'Angelo, Pablo [1 ]
机构：
[1] German Aerosp Ctr DLR, Remote Sensing Technol Inst, D-82234 Wessling, Germany
来源：
ISPRS HANNOVER WORKSHOP 2013 | 2013年 / 40-1卷 / W-1期
关键词：
ZY-3; Satellite; DEM; Matching; Stereo; Accuracy;
D O I：
暂无
中图分类号：
P9 [自然地理学];
学科分类号：
0705 ; 070501 ;
摘要：
DSM generation using stereo satellites is an important topic for many applications. China has launched the three line ZY-3 stereo mapping satellite last year. This paper evaluates the ZY-3 performance for DSM and orthophoto generation on two scenes east of Munich. The direct georeferencing performance is tested using survey points, and the 3D RMSE is 4.5 m for the scene evaluated in this paper. After image orientation with GCPs and tie points, a DSM is generated using the Semi-Global Matching algorithm. For two 5 x 5 km(2) test areas, a LIDAR reference DTM was available. After masking out forest areas, the overall RMSE between ZY-3 DSM and LIDAR reference is 2.0 m (RMSE). Additionally, qualitative comparison between ZY-3 and Cartosat-1 DSMs is performed.
引用
收藏
页码：57 / 61
页数：5
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