Improved registration algorithm for SAR image based on stable point of PS-InSAR

Keyu Luo; Zhenrong Zhang; Yuejian He

doi:10.1117/12.2634411

4 May 2022 Improved registration algorithm for SAR image based on stable point of PS-InSAR

Keyu Luo, Zhenrong Zhang, Yuejian He

Proceedings Volume 12172, International Conference on Electronic Information Engineering and Computer Communication (EIECC 2021); 121721G (2022) https://doi.org/10.1117/12.2634411
Event: International Conference on Electronic Information Engineering and Computer Communication (EIECC 2021), 2021, Nanchang, China

Abstract

Image registration for SAR lays the foundation for interferometric synthetic radar. And its image registration quality directly affects the extraction accuracy of surface deformation. Owning to the optimal performance of PS-InSAR for monitoring surface deformation in urban areas, the article adopts PS-InSAR to monitor the surface deformation in the study area. PS points with accumulated deformation range from -3.568 to 4.680 mm. These points are selected as ground control points (GCPs) for image registration for SAR. In that case, it is possible to make some improvements on traditional registration algorithm. By means of filtering processing for both the improved algorithm and interference pattern guided by traditional algorithm through Boxcar, Goldstein, Adaptive and non local InSAR, the percentage of areas with coherence over 0.6 can be calculated. In the final place, it is discovered that the improved algorithm has a significant impact on enhancing all four filtering algorithms. Among these filtering algorithms, the performance of non local InSAR is improved most significantly, with an improved value of 8.81%.

Citation Download Citation

Keyu Luo, Zhenrong Zhang, and Yuejian He "Improved registration algorithm for SAR image based on stable point of PS-InSAR", Proc. SPIE 12172, International Conference on Electronic Information Engineering and Computer Communication (EIECC 2021), 121721G (4 May 2022); https://doi.org/10.1117/12.2634411

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