Enhancing cross view geo localization through global local quadrant interaction network
Cross-view geo-localization aims to match images of the same location captured from different perspectives, such as drone and satellite views. This task is inherently challenging due to significant visual discrepancies caused by viewpoint variations. Existing approaches often rely on global descriptors or limited directional cues, failing to effectively integrate diverse spatial information and global-local interactions. To address these limitations, we propose the Global-Local Quadrant Interaction Network (GLQINet), which enhances feature representation through two key components: the Quadrant Insight Module (QIM) and the Integrated Global-Local Attention Module (IGLAM). QIM partitions feature maps into directional quadrants, refining multi-scale spatial representations while preserving intra-class consistency. Meanwhile, IGLAM bridges global and local features by aggregating high-association feature stripes, reinforcing semantic coherence and spatial correlations. Extensive experiments on the University-1652 and SUES-200 benchmarks demonstrate that GLQINet significantly improves geo-localization accuracy, achieving state-of-the-art performance and effectively mitigating cross-view discrepancies.
Authors
- Jin Xue Xu (ORCID: https://orcid.org/0000-0003-3898-3105)
- Juan Zhang (ORCID: https://orcid.org/0009-0004-7771-798X)
- Junping Yin (ORCID: https://orcid.org/0000-0002-9270-2071)
- Gao Tianyan
Institutions
- Northeast Normal University (CN)
- Beijing Academy of Artificial Intelligence (CN)
- Shanghai Zhangjiang Laboratory (CN)
- Institute of Applied Physics and Computational Mathematics (CN)
Publication Details
- Journal
- Scientific Reports
- Published
- 2025-09-29
- DOI
- https://doi.org/10.1038/s41598-025-18935-6
- Citations
- 1
- Primary Topic
- Astronomical Observations and Instrumentation
- Type
- article
- Field-Weighted Citation Impact
- 1.33
Funders
- National Natural Science Foundation of China
- Bulgarian National Science Fund