视觉-语言基础模型驱动的遥感图文检索研究进展

武辉; 赵妍; 张培溶; 侯英妍; 齐析屿; 王磊

doi:10.11999/JEIT260189

视觉-语言基础模型驱动的遥感图文检索研究进展

doi: 10.11999/JEIT260189 cstr: 32379.14.JEIT260189

武辉^{1, 2, 3, 4},
赵妍^{1, 2, 3, 4},
张培溶^{1, 2, 3, 4},
侯英妍^{1, 2},
齐析屿^{1, 2},
王磊^{1, 2, 3, ,}

1.
中国科学院空天信息创新研究院北京 100094
2.
目标认知与应用技术重点实验室北京 100094
3.
中国科学院大学北京 100190
4.
中国科学院大学电子电气与通信工程学院北京 100190

基金项目: 中国科学院重点部署项目资助(基金号：KGFZD-145-25-38和RCJJ-145-24-13)；空天院科学与颠覆性技术项目资助(基金号：AIRCAS2024-AIRCAS-SDTP-03)

详细信息

作者简介:
武辉：男，博士生，研究方向为大语言模型、检索增强生成

赵妍：女，博士生，研究方向为遥感多模态检索

张培溶：女，博士生，研究方向为遥感多模态目标识别

侯英妍：女，助理研究员，研究方向为多模态大模型、遥感视觉推理

齐析屿：男，助理研究员，研究方向为遥感小样本目标智能解译

王磊：男，研究员，研究方向为多任务遥感图像解译、多模态遥感目标跟踪

通讯作者:
王磊　wanglei002931@aircas.ac.cn

中图分类号: TP391.41
计量
- 文章访问数: 21
- HTML全文浏览量: 2
- PDF下载量: 2
- 被引次数: 0
出版历程
- 收稿日期: 2026-02-13
- 修回日期: 2026-04-09
- 录用日期: 2026-04-09
- 网络出版日期: 2026-04-28

Recent Advances in Remote Sensing Image-Text Retrieval Driven by Vision–Language Foundation Models

WU Hui^{1, 2, 3, 4},
ZHAO Yan^{1, 2, 3, 4},
ZHANG Peirong^{1, 2, 3, 4},
HOU Yingyan^{1, 2},
QI Xiyu^{1, 2},
WANG Lei^{1, 2, 3
, ,}

1.
Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
2.
Key Laboratory of Target Cognition and Application Technology, Beijing 100094, China
3.
University of Chinese Academy of Sciences, Beijing 100190, China
4.
School of Electronic, Electrical and Communication Engineering, UCAS, Beijing 100190, China

Funds: Key Program of Chinese Academy of Sciences under Grant KGFZD-145-25-38 and RCJJ-145-24-13;Science and Disruptive Technology Program under Grant AIRCAS2024-AIRCAS-SDTP-03.

摘要

摘要: 遥感图文检索(Remote Sensing Image-Text Retrieval, RS-TIR)通过建立遥感影像与自然语言描述之间的跨模态语义关联，为海量地理空间数据的语义理解与智能检索提供了重要支撑。随着高分辨率对地观测数据持续积累，复杂场景、多尺度结构、专业语义表达及标注稀缺等因素，使传统手工特征方法和常规深度跨模态模型在语义建模、跨场景泛化和开放环境适应方面受到明显制约。围绕视觉-语言基础模型(Vision-Language Models, VLM)驱动的遥感图文检索研究，系统梳理了任务建模、领域挑战、评价基准与技术演进脉络，重点归纳了模型架构范式、遥感领域适配策略和跨模态语义对齐机制，并结合代表性数据集、典型方法及性能比较总结了当前研究进展。分析表明，视觉-语言基础模型在缓解语义鸿沟、提升零样本迁移能力和增强复杂语义理解方面展现出显著优势，但多源异构数据统一建模、地理知识增强、开放场景持续学习以及轻量化部署仍是该方向亟待突破的关键问题。相关综述可为遥感多模态信息理解、跨模态检索模型设计及工程应用提供系统参考。
- 遥感图文检索 /
- 视觉-语言基础模型 /
- 跨模态检索 /
- 多模态学习
Abstract: Significance Remote sensing image–text retrieval (RS-TIR) connects massive Earth observation imagery with natural-language queries and has become an important interface for geospatial intelligence systems. Compared with conventional content-based retrieval, RS-TIR enables users to search scenes, objects, spatial layouts, and functional regions through semantic descriptions instead of handcrafted visual cues. This capability is increasingly needed in natural resource monitoring, urban governance, disaster response, environmental assessment, and on-demand retrieval from rapidly growing satellite archives. However, the task remains fundamentally challenging because remote sensing imagery is captured from a nadir or near-nadir perspective, exhibits strong rotation invariance, contains extreme scale variation from tiny vehicles to large airports, and often involves domain-specific semantic descriptions such as land-use attributes, spatial distributions, and geoscientific relations. Meanwhile, the amount of high-quality image–text annotation is still limited relative to the scale of remote sensing data. These properties enlarge the semantic gap between images and language and constrain the generalization ability of traditional cross-modal retrieval methods. Against this background, the review focuses on how vision–language foundation models (VLMs) reshape RS-TIR by introducing large-scale contrastive pre-training, stronger transferable representations, and more flexible multimodal interaction mechanisms. The review also clarifies why remote sensing adaptation is necessary and why a dedicated synthesis of architectures, datasets, alignment mechanisms, and future directions is timely for the field. Progress The technical development of RS-TIR is organized from three complementary perspectives. First, the review summarizes the domain-specific challenges that shape the task, including visually isotropic topology with extreme scale variation, professionalized and fine-grained textual semantics, and the compounded semantic gap between overhead imagery and natural-language descriptions (Fig.3). The overall survey structure is then outlined to show the logical progression from task formulation to future challenges (Fig.1). From the methodological timeline, RS-TIR evolves from handcrafted visual descriptors and shallow semantic mapping to deep representation learning, and then to VLM-driven paradigms with broader generalization and zero-shot transfer ability (Fig.4, Table 2). Early methods rely on color, texture, shape, and hash-based retrieval, but they struggle to model high-level geospatial semantics and complex scene composition. Deep learning methods improve retrieval by learning joint embedding spaces, adopting dual-encoder or interaction-based architectures, and introducing multi-scale feature fusion and region-aware matching. These methods substantially enhance semantic consistency, yet they still depend heavily on labeled data and often suffer from limited robustness in open or cross-sensor scenarios. Second, the review summarizes the benchmark ecosystem used to evaluate these methods. Representative datasets span small-scale test sets such as Sydney-Caption and UCM-Caption, mainstream benchmarks such as RSICD and RSITMD, and recent large-scale training resources such as RS5M and SkyScript (Table 1). These datasets reveal a clear transition from small manually annotated corpora to web-scale or automatically generated image–text pairs, which in turn supports domain pre-training and larger model adaptation. Third, the review analyzes the core VLM techniques now driving progress in RS-TIR. The model spectrum and representative architecture families, including contrastive dual-encoder models, multimodal interaction models, and remote sensing foundation models integrated with large language models, are summarized systematically (Fig.5, Fig.6, Table 3). Domain adaptation routes are further grouped into continued remote sensing pre-training, parameter-efficient transfer learning, adapter-based tuning, prompt learning, and instruction tuning. At the semantic alignment level, the review emphasizes contrastive joint embedding, fine-grained multi-scale alignment, and the incorporation of remote sensing priors such as spatial topology and geolocation. Performance comparisons on RSICD and RSITMD show that the introduction of remote sensing VLMs, especially RemoteCLIP, GeoRSCLIP, iEBAKER, and LRSCLIP, leads to consistent gains in mean Recall and overall retrieval robustness (Table 4). In parallel, the review also tracks the extension of retrieval capability into unified multi-task remote sensing models, where retrieval, grounding, segmentation, and reasoning begin to share a common multimodal representation space. Conclusions Several conclusions are drawn from the comparative analysis. First, VLMs establish a new dominant paradigm for RS-TIR because they significantly narrow the cross-modal semantic gap while improving transferability across datasets and scenes. Second, there is no universally optimal architecture: dual-encoder models remain attractive for large-scale retrieval because of their efficiency, whereas interaction-based or instruction-enhanced models offer finer semantic alignment at higher computational cost. Third, domain adaptation is indispensable. Continued pre-training on remote sensing image–text corpora, parameter-efficient tuning, and prompt-based adaptation consistently outperform direct reuse of Internet-trained VLMs, indicating that remote sensing imagery differs too strongly from natural-image distributions to rely on generic pre-training alone. Fourth, the most effective recent methods do not improve performance through scale alone; they also exploit remote sensing-specific information, including multi-scale structures, foreground entities, explicit keyword reasoning, and spatial priors. Finally, the review shows that the field is shifting from isolated retrieval models toward more general geospatial multimodal systems. Retrieval is no longer treated only as a matching task, but also as a key capability supporting question answering, instruction following, knowledge augmentation, and coordinated reasoning in remote sensing applications. Prospects Future research is expected to move in four closely related directions. One direction is the unified representation of multi-source heterogeneous data, especially the integration of optical imagery with synthetic aperture radar, hyperspectral data, thermal infrared observations, and multi-temporal acquisitions. Another direction is knowledge-enhanced retrieval, where geospatial priors, land-use rules, remote sensing terminology, and external knowledge bases are incorporated into multimodal alignment and retrieval-augmented reasoning. A third direction is lifelong and open-world learning. Real deployment requires models to remain reliable under seasonal changes, sensor updates, regional domain shifts, cloud contamination, and newly emerging categories without catastrophic forgetting. The fourth direction concerns efficiency and deployability. Because practical remote sensing systems often operate under tight computational budgets, lightweight tuning, sparse computation, token reduction, model compression, and on-orbit or edge inference will become increasingly important. Interactive and explainable retrieval is also likely to grow in importance, allowing analysts to refine queries through dialogue and inspect the image regions or semantic cues that support retrieval decisions. Overall, continued progress in data construction, domain adaptation, semantic alignment, and efficient multimodal modeling is expected to make RS-TIR a more robust infrastructure capability for Earth observation applications.
- Remote sensing image-text retrieval /
- Vision-language foundation models /
- Cross-modal retrieval /
- Multimodal learning

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图 1 本文行文框架

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图 2 遥感图文检索任务流程

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图 3 遥感影像特征带来的跨模态挑战

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图 4 遥感图文检索技术发展阶段

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图 5 遥感图文检索相关模型谱系及任务扩展示意图

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图 6 视觉-语言模型两类典型架构示意图

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图 7 CLIP模型对比学习训练框架

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图 8 Vision Transformer模型结构示意图

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表 1 典型遥感图文检索数据集

数据集	图片数量	图像尺寸	描述模式/标注方式	类别
Sydney-Caption^[29]	613	500 × 500	每张图像5句描述	核心测试基准
UCM-Caption^[30]	2100	256 × 256	每张图像5句描述	核心测试基准
RSICD^[31]	10,921	224 × 224	每张图像1–5句描述	核心测试基准
RSITMD^[32]	4743	256 × 256	每张图像5句描述 + 细粒度关键词	核心测试基准
NWPU-Caption^[33,34]	31,500	256 × 256	每张图像5句描述	大规模预训练/训练数据
RSICap^[35]	2585	512 × 512	每张图像1句高质量人工标注描述	生成式/指令微调数据
RS5M^[36]	5M	全分辨率	关键词过滤 + BLIP-2生成	大规模预训练/训练数据
SkyScript^[37]	5.2M	全分辨率	自动生成 + CLIP 过滤	大规模预训练/训练数据
MMRS-1M subset^[38]	1M	全分辨率	多任务指令跟随	生成式/指令微调数据
GeoLangBind-2M subset^[39]	2M	全分辨率	数据集整合 + 自动生成	大规模预训练/训练数据
Git-10M^[40]	10M	全分辨率	自动生成 + 数据清洗	大规模预训练/训练数据

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表 2 遥感图文检索技术演进

技术阶段	核心思想	技术特点	优势	局限
传统方法	手工特征+关键词匹配	低层视觉描述	结构简单、计算开销低、具有一定可解释性	难以表达高层语义，存在明显语义鸿沟
深度学习方法	表征学习	学习图文共享嵌入空间	语义表达能力增强，可实现端到端训练	依赖大规模标注数据，跨场景泛化能力有限
视觉语言基础模型	大规模预训练	VLM构建统一跨模态语义空间	泛化能力强，支持零样本迁移	存在领域分布差异，需遥感适配
VLM扩展与多任务统一模型	统一语义表示	将检索、检测、分割等任务纳入统一框架	任务协同、共享表示、增强场景理解能力	计算复杂度高，模型规模与训练成本较大

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表 3 典型视觉-语言模型与遥感基础模型对比

模型	基础网络	训练数据	训练策略	应用领域
CLIP^[9]	ResNets、ViT	WIT(WebImageText)	对比学习	通用
Flamingo^[58]	NFNet、Transformer	COCO、OKVQA、VQAv2、MSVDQA	Gated Cross-Attention+ Perceiver Resampler	通用
ALBEF^[79]	BERT、ViT	COCO 和 Visual Genome	对比学习	通用
BLIP^[80]	BERT 、 ViT	COCO、Visual Genome、Conceptual Captions	对比学习	通用
LLaVA^[81]	Vicuna、CLIP	ScienceQA、CC-595K、 LLaVA-Instruct-158K	Projector+Instruction Tuning	通用
Qwen2.5-VL^[83]	ViT、Qwen2.5	多个数据集	动态分辨率预训练+ 多阶段指令微调	通用
GPT-4V^[84]	未公开	多个数据集	未公开	通用
Gemini^[85]	未公开	多个数据集	未公开	通用
RemoteCLIP^[10]	ViT-14	10 个数据集	MAE	遥感
RSGPT^[35]	InstructBLIP	图像＋文本描述＋指令	文本监督	遥感
GeoChat^[88]	LLaVA1.5	318k 个指令对的 RS 数据集	LoRA 微调	遥感
EarthPT^[89]	Unsupervised Multitask Learners	ClearSky	自回归	遥感
DINO-MM^[90]	Self-supervised Multitask Learners	多个数据集	蒸馏＋对比	遥感
SkySense^[91]	ViT	多个数据集	冻结＋微调	遥感
RingMo^[92]	ViT	多个数据集	MAE＋PIMask	遥感
RSPrompter^[93]	SAM	WHU,NWPU,SSDD	冻结＋微调	遥感
SpectralGPT^[94]	ViT	fMoW/BigEarthNetS2	MAE＋3DMask	遥感

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表 4 遥感VLM检索性能比较

方法	年份	模型参数量	预训练数据规模	微调方式	RSICD Dataset	RSITMD Dataset
PIR[62]	2023	161M	5 million	视觉指令微调	23.48	39.09
RemoteCLIP[10]	2024	428M	0.83 million	持续预训练	35.02	50.68
GeoRSCLIP[36]	2024	151M	5 million	参数高效微调	38.26	52.43
SkyCLIP[37]	2024	428M	2.6 million	持续预训练/零样本迁移	19.97	30.58
iEBAKER[110]	2025	151M	0.2 million	直接微调	43.41	55.65
LRSCLIP[11]	2025	367M	2 million	全量微调	48.34	65.04

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