arXiv:2509.12757cs.CV2025-09被引 1

用迭代方式精确定位卫星图像中的目标,抗噪声更强。

Recurrent Cross-View Object Geo-Localization

  • 将定位任务设计为多轮迭代过程,逐步优化位置预测。
  • 在多个基准上达到当前最高精度,参数量却更少。
  • 适合需要高精度定位且资源受限的遥感应用。

跨视图物体地理定位(CVOGL)旨在给定一张带点提示的查询图像时,确定其在高分辨率卫星影像中的具体位置。现有方法将CVOGL视为单次检测过程,直接从跨视图信息聚合中回归目标位置,但对特征噪声敏感且缺乏纠错机制。本文提出ReCOT:一种基于递归的跨视图物体地理定位变换器,将定位建模为递归过程。ReCOT引入一组可学习的标记,编码来自查询图像和提示嵌入的任务特定意图,并迭代地关注参考特征以细化预测位置。为增强递归过程,我们引入两个互补模块:(1) 基于SAM的知识蒸馏策略,将分段先验从分割一切模型(SAM)迁移至模型,提供清晰语义引导且不增加额外推理开销;(2) 参考特征增强模块(RFEM),通过层次化注意力强调参考特征中的目标相关区域。在多个CVOGL基准上的大量实验表明,ReCOT在实现最先进性能的同时,显著减少参数量。代码已开源:https://github.com/Temperature-ai/ReCOT.git。

原文摘要 · Abstract (English)

Cross-view object geo-localization (CVOGL) aims to determine the location of a specific object in high-resolution satellite imagery given a query image with a point prompt. Existing approaches treat CVOGL as a one-shot detection process, directly regressing object locations from cross-view information aggregation, but they are vulnerable to feature noise and lack mechanisms for error correction. In this paper, we propose ReCOT, a Recurrent Cross-view Object geo-localization Transformer, which models CVOGL as a recurrent localization process. ReCOT introduces a set of learnable tokens that encode task-specific intent from the query image and prompt embeddings, and iteratively attend to the reference features to refine the predicted location. To enhance this recurrent process, we incorporate two complementary modules: (1) a SAM-based knowledge distillation strategy that transfers segmentation priors from the Segment Anything Model (SAM) to provide clearer semantic guidance without additional inference cost, and (2) a Reference Feature Enhancement Module (RFEM) that introduces hierarchical attention to emphasize object-relevant regions in the reference features. Extensive experiments on CVOGL benchmarks demonstrate that ReCOT achieves state-of-the-art (SOTA) performance while significantly reducing parameters compared to previous SOTA approaches. Our code is available at https://github.com/Temperature-ai/ReCOT.git.

地理定位视觉定位递归模型遥感

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