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27 November 2024 Enhanced satellite images block adjustment via preliminary RPCs correction and adaptive two-step tie points matching strategy
Binghao Chang, Shijie Liu, Zhida Bai, Zhonghua Hong, Xiaohua Tong
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Proceedings Volume 13402, International Conference on Remote Sensing, Mapping, and Geographic Information Systems (RSMG 2024); 134021V (2024) https://doi.org/10.1117/12.3048857
Event: International Conference on Remote Sensing, Mapping, and Geographic Information Systems (RSMG 2024), 2024, Zhengzhou, China
Abstract
With the increasing diversification and complexity of satellite imagery, traditional uncontrolled block adjustment algorithms often encounter challenges such as significant disparities in image positioning accuracy and difficulties in weight assignment. This paper proposes utilizing an adaptive LNIFT algorithm to extract ground control point data from public reference Digital Orthophoto Maps (DOM) for preliminary RPCs correction. This can enhance the internal consistency of experimental data, making it easier to determine weights during the adjustment process. Furthermore, we introduce a tie point extraction strategy that integrates coastal and cloud mask data and incorporates a two-step matching strategy. This optimizes extraction effectiveness and ensures robust tie point extraction capability under complex scenes. Finally, block adjustment is conducted to further reduce internal geometric consistency. The experimental results indicate that this method can effectively improve the internal geometric consistency between images, and the proposed matching strategy significantly enhances the adjustment results.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Binghao Chang, Shijie Liu, Zhida Bai, Zhonghua Hong, and Xiaohua Tong "Enhanced satellite images block adjustment via preliminary RPCs correction and adaptive two-step tie points matching strategy", Proc. SPIE 13402, International Conference on Remote Sensing, Mapping, and Geographic Information Systems (RSMG 2024), 134021V (27 November 2024); https://doi.org/10.1117/12.3048857
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KEYWORDS
Satellite imaging
Satellites
Remote sensing
Earth observing sensors
Error analysis
Image enhancement
Orthophoto maps
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