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arXiv 2402.06475cs.CV

用于遥感图像描述与检索的大型语言模型

Large Language Models for Captioning and Retrieving Remote Sensing Images

INESC-ID, Instituto Superior Técnico, University of Lisbon(里斯本大学高等技术学院INESC-ID研究所);Universidade NOVA de Lisboa(新里斯本大学);Ecole Polytechnique Fédérale de Lausanne(洛桑联邦理工学院)

João Daniel Silva, João Magalhães, Devis Tuia, Bruno Martins

AI总结:

提出RS-CapRet,结合大型解码器语言模型与遥感适配的图像编码器,通过线性层桥接,实现遥感图像描述与文本-图像检索,达到最先进或相当性能。

摘要:

图像描述和跨模态检索是涉及视觉与语言信息联合分析的任务示例。在遥感影像方面,这些任务可以帮助非专家用户提取与地球观测相关的信息,用于各种应用。然而,尽管已有一些前期努力,视觉与语言模型在遥感领域的发展和应用一直受到先前研究中可用数据集和模型规模相对较小的阻碍。在这项工作中,我们提出了RS-CapRet,一种用于遥感任务(特别是图像描述和文本-图像检索)的视觉与语言方法。我们特别提出使用一个能力强大的大型解码器语言模型,并结合通过对比语言-图像预训练适应遥感影像的图像编码器。为了将图像编码器和语言解码器连接起来,我们提出使用来自不同遥感图像描述数据集的组合示例来训练简单的线性层,同时保持其他参数冻结。RS-CapRet随后能够为遥感图像生成描述,并根据文本描述检索图像,达到了与现有方法相当或最先进的性能。定性结果表明,RS-CapRet能够有效利用预训练的大型语言模型来描述遥感图像,基于不同类型的查询进行检索,并展现出以对话方式处理交错图像和文本序列的能力。

英文摘要:

Image captioning and cross-modal retrieval are examples of tasks that involve the joint analysis of visual and linguistic information. In connection to remote sensing imagery, these tasks can help non-expert users in extracting relevant Earth observation information for a variety of applications. Still, despite some previous efforts, the development and application of vision and language models to the remote sensing domain have been hindered by the relatively small size of the available datasets and models used in previous studies. In this work, we propose RS-CapRet, a Vision and Language method for remote sensing tasks, in particular image captioning and text-image retrieval. We specifically propose to use a highly capable large decoder language model together with image encoders adapted to remote sensing imagery through contrastive language-image pre-training. To bridge together the image encoder and language decoder, we propose training simple linear layers with examples from combining different remote sensing image captioning datasets, keeping the other parameters frozen. RS-CapRet can then generate descriptions for remote sensing images and retrieve images from textual descriptions, achieving SOTA or competitive performance with existing methods. Qualitative results illustrate that RS-CapRet can effectively leverage the pre-trained large language model to describe remote sensing images, retrieve them based on different types of queries, and also show the ability to process interleaved sequences of images and text in a dialogue manner.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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