SAR Elevation Control Point Extraction Combining Multistrategy ATLAS Data Preference and Image Matching
To refine the geometric parameters of satellite-based SAR images and improve the stereo positioning accuracy, a method of SAR elevation control point extraction combining multistrategy ATLAS data preference and image matching has been developed. This method is based on the concept of optical remote...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
China Science Publishing & Media Ltd. (CSPM)
2023-02-01
|
| Series: | Leida xuebao |
| Subjects: | |
| Online Access: | https://radars.ac.cn/cn/article/doi/10.12000/JR22134 |
| _version_ | 1797421492824178688 |
|---|---|
| author | Yang YU Guowang JIN Xin XIONG Chenggong TONG Guoping ZHANG |
| author_facet | Yang YU Guowang JIN Xin XIONG Chenggong TONG Guoping ZHANG |
| author_sort | Yang YU |
| collection | DOAJ |
| description | To refine the geometric parameters of satellite-based SAR images and improve the stereo positioning accuracy, a method of SAR elevation control point extraction combining multistrategy ATLAS data preference and image matching has been developed. This method is based on the concept of optical remote sensing image elevation control point extraction from satellite-based laser altimetry data. The method employs various strategies, such as non-night observation photon filtering, high confidence photon selection, SRTM DEM-assisted coarse difference rejection, and large eccentricity elliptical filtering kernel flat area photon screening. To extract laser elevation points with high quality and flat area from ATLAS data for ATL03 level products. Then the geocoding of the slant range SAR images is performed using the SRTM DEM. The local Google Earth images are selected as the footprint images according to the plane coordinates of the laser elevation points. The rank self-similarity descriptor is used to match the footprint images with the SAR geocoded images. The coordinates of the SAR images corresponding to the laser elevation points are obtained. Thus, SAR elevation control points are extracted. The extraction of GF-3 SAR elevation control points was performed using ATLAS data from two regions: Dengfeng, China, and Yokosuka, Japan. The geometric parameter refinement of SAR images using extracted elevation control points significantly improved the accuracy of stereo positioning and verified that the method for extracting elevation control points described in this paper is feasible and effective. |
| first_indexed | 2024-03-09T07:18:16Z |
| format | Article |
| id | doaj.art-d85ac45858c14489ac357df183f644df |
| institution | Directory Open Access Journal |
| issn | 2095-283X |
| language | English |
| last_indexed | 2024-03-09T07:18:16Z |
| publishDate | 2023-02-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj.art-d85ac45858c14489ac357df183f644df2023-12-03T08:12:23ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2023-02-01121647510.12000/JR22134R22134SAR Elevation Control Point Extraction Combining Multistrategy ATLAS Data Preference and Image MatchingYang YU0Guowang JIN1Xin XIONG2Chenggong TONG3Guoping ZHANG4Institute of Geospatial Information, Information Engineering University, Zhengzhou 450001, ChinaInstitute of Geospatial Information, Information Engineering University, Zhengzhou 450001, ChinaInstitute of Geospatial Information, Information Engineering University, Zhengzhou 450001, ChinaInstitute of Geospatial Information, Information Engineering University, Zhengzhou 450001, ChinaInstitute of Geospatial Information, Information Engineering University, Zhengzhou 450001, ChinaTo refine the geometric parameters of satellite-based SAR images and improve the stereo positioning accuracy, a method of SAR elevation control point extraction combining multistrategy ATLAS data preference and image matching has been developed. This method is based on the concept of optical remote sensing image elevation control point extraction from satellite-based laser altimetry data. The method employs various strategies, such as non-night observation photon filtering, high confidence photon selection, SRTM DEM-assisted coarse difference rejection, and large eccentricity elliptical filtering kernel flat area photon screening. To extract laser elevation points with high quality and flat area from ATLAS data for ATL03 level products. Then the geocoding of the slant range SAR images is performed using the SRTM DEM. The local Google Earth images are selected as the footprint images according to the plane coordinates of the laser elevation points. The rank self-similarity descriptor is used to match the footprint images with the SAR geocoded images. The coordinates of the SAR images corresponding to the laser elevation points are obtained. Thus, SAR elevation control points are extracted. The extraction of GF-3 SAR elevation control points was performed using ATLAS data from two regions: Dengfeng, China, and Yokosuka, Japan. The geometric parameter refinement of SAR images using extracted elevation control points significantly improved the accuracy of stereo positioning and verified that the method for extracting elevation control points described in this paper is feasible and effective.https://radars.ac.cn/cn/article/doi/10.12000/JR22134synthetic aperture radar (sar)gf-3the ice, cloud and land elevation satellite-2 (icesat-2)rational polynomial coefficients (rpc) modelpositioning |
| spellingShingle | Yang YU Guowang JIN Xin XIONG Chenggong TONG Guoping ZHANG SAR Elevation Control Point Extraction Combining Multistrategy ATLAS Data Preference and Image Matching Leida xuebao synthetic aperture radar (sar) gf-3 the ice, cloud and land elevation satellite-2 (icesat-2) rational polynomial coefficients (rpc) model positioning |
| title | SAR Elevation Control Point Extraction Combining Multistrategy ATLAS Data Preference and Image Matching |
| title_full | SAR Elevation Control Point Extraction Combining Multistrategy ATLAS Data Preference and Image Matching |
| title_fullStr | SAR Elevation Control Point Extraction Combining Multistrategy ATLAS Data Preference and Image Matching |
| title_full_unstemmed | SAR Elevation Control Point Extraction Combining Multistrategy ATLAS Data Preference and Image Matching |
| title_short | SAR Elevation Control Point Extraction Combining Multistrategy ATLAS Data Preference and Image Matching |
| title_sort | sar elevation control point extraction combining multistrategy atlas data preference and image matching |
| topic | synthetic aperture radar (sar) gf-3 the ice, cloud and land elevation satellite-2 (icesat-2) rational polynomial coefficients (rpc) model positioning |
| url | https://radars.ac.cn/cn/article/doi/10.12000/JR22134 |
| work_keys_str_mv | AT yangyu sarelevationcontrolpointextractioncombiningmultistrategyatlasdatapreferenceandimagematching AT guowangjin sarelevationcontrolpointextractioncombiningmultistrategyatlasdatapreferenceandimagematching AT xinxiong sarelevationcontrolpointextractioncombiningmultistrategyatlasdatapreferenceandimagematching AT chenggongtong sarelevationcontrolpointextractioncombiningmultistrategyatlasdatapreferenceandimagematching AT guopingzhang sarelevationcontrolpointextractioncombiningmultistrategyatlasdatapreferenceandimagematching |