地表大梯度时序形变的确定方法、装置、设备及介质
By screening super master images for registration and grouping thresholds, and combining robust estimation, the problems of pixel target mismatch and gross errors in SAR pixel offset tracking technology are solved, and high-precision monitoring of large gradient temporal deformation of the ground surface is realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NORTHEASTERN UNIV CHINA
- Filing Date
- 2026-05-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing SAR pixel offset tracking technology is prone to pixel mismatch and gross errors in large gradient deformation monitoring, resulting in large errors in time series calculation results and affecting the accuracy of surface deformation monitoring.
By screening super master images for registration, SLC images are divided into subsets based on grouping thresholds, robust estimation is used to reduce the impact of gross errors, short-time series deformation is determined, and finally, the large-gradient temporal deformation of the land surface is obtained by connecting them.
It improves the monitoring accuracy of large-gradient temporal deformation of the Earth's surface, solves the mismatch problem caused by significant changes in pixel position, and reduces the impact of gross errors on the results.
Smart Images
Figure CN122151083B_ABST