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AST: An Attention-Guided Segment Transformer for Drone-Based Cross-View Geo-Localization

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Computational Visual Media (CVM 2024)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 14593))

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Abstract

To tackle the problem of drone-based cross-view geo-localization, we address how to match drone-view images and satellite-view images, which is extremely challenging due to the variability of view angles and view distances. Inspired by how humans recognize aerial images, we propose an effective Attention-guided Segment Transformer (AST) structure: a novel segmentation strategy is introduced to cope with the huge variations between aerial views, and this segmentation is adaptive and non-uniform, allowing it to segment regions with corresponding relationships even after significant changes in viewpoint; furthermore, a new segment token module is designed to generate segment tokens that are concatenated with the original class token to supplement the local information. Compared to CNN-based methods, AST fully utilizes the self-attention mechanism to establish global context correlations; and the newly introduced segment token module allows AST to effectively extract local features as well—a capability not present in the vanilla vision transformer. Remarkably, AST demonstrates good robustness to viewpoint changes, even when there are overlapping regions, and this good treat is confirmed by the experimental results on the University-1652 dataset, which also show competitive performance for both tasks of drone-view target localization and drone navigation.

This work is supported by NSFC under grants U19A2071 and 61860206007, Sichuan Science and Technology Program under grant 2023YFG0334, as well as the funding from Sichuan University under grant 2020SCUNG205.

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Correspondence to Yiguang Liu .

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Zhao, Z., Tang, T., Chen, J., Shi, X., Liu, Y. (2024). AST: An Attention-Guided Segment Transformer for Drone-Based Cross-View Geo-Localization. In: Zhang, FL., Sharf, A. (eds) Computational Visual Media. CVM 2024. Lecture Notes in Computer Science, vol 14593. Springer, Singapore. https://doi.org/10.1007/978-981-97-2092-7_17

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  • DOI: https://doi.org/10.1007/978-981-97-2092-7_17

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