BEYOND THE 12M TANDEM-X DEM

被引：3
|
作者：
Zhu, Xiao Xiang [1 ]
Lachaise, Marie [1 ]
Adam, Fathalrahman
Shi, Yilei
Eineder, Michael [1 ]
Bamler, Richard [1 ]
机构：
[1] German Aerosp Ctr DLR, Remote Sensing Technol Inst IMF, D-82234 Wessling, Germany
来源：
2014 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2014年
关键词：
TanDEM-X; DEM; nonlocal means filter; HRTI-4;
D O I：
10.1109/IGARSS.2014.6946440
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The standard TanDEM-X product meats HRTI-3 DEM specification and comes with a sample spacing of 12 m. We apply non-local means (NL) interferogram filtering to the TanDEM-X data. In this paper, we present modifications of the original NL filter which render it more appropriate and efficient for massive processing of TanDEM-X data. Further, we investigate the noise reduction properties as well as the resolution and the coherence estimation accuracy of the new NL filter. Simulations and tests with TanDEM-X data hint that the improved DEMs possess a quality close to the HRTI-4 standard. Also future global InSAR missions like Tandem-L will greatly benefit from this type of filters.
引用
收藏
页数：4
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