研究目的
To merge the results of the interferometry and data from segmentation of an optical high resolution image for DEM generation with high resolution building.
研究成果
The hybridization of InSAR interferometry and high resolution optical image segmentation provides a viable method for generating DEM with high resolution building. The method showed good results when tested on several sites.
研究不足
The method's effectiveness is dependent on the quality of the SAR images and the coherence between them. The process is complex and requires precise knowledge of the orbital and calibration files.
1:Experimental Design and Method Selection:
The methodology involves the hybridization of interferometry Algorithm (InSAR) and the use of geospatial data from the image segmentation.
2:Sample Selection and Data Sources:
Utilizes two Single Look Complex images for InSAR and high resolution optical images for segmentation.
3:List of Experimental Equipment and Materials:
Synthetic aperture radar (SAR) images from ERS1-2 satellites.
4:Experimental Procedures and Operational Workflow:
Includes co-registration, interferogram generation, phase unwrapping, height map generation, orthorectification, Mean-Shift segmentation, polygonization of the segmented image, extraction of the building, and zonal statistics process.
5:Data Analysis Methods:
Involves the calculation of zonal statistic parameter and mapping segments comprising the highest elevations.
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