toplogo
Sign In

Knowledge-Aware Text-Image Retrieval for Remote Sensing Images


Core Concepts
Integrating external knowledge from knowledge graphs can enrich the text content and alleviate the information gap between text and images, leading to improved text-image retrieval performance for remote sensing applications.
Abstract
The paper proposes a Knowledge-aware Text-Image Retrieval (KTIR) method for remote sensing images. KTIR aims to address the information asymmetry between text and images by mining relevant information from an external knowledge graph and integrating it into the text representation. The key highlights are: KTIR extracts relevant knowledge triplets from external knowledge sources (ConceptNet and RSKG) based on the keywords in the caption text. It then converts the knowledge triplets into knowledge sentences and fuses them with the caption text using a cross-attention mechanism. The knowledge-aware text representation is used together with the image features to compute text-image similarity scores for retrieval. KTIR employs a knowledge-aware contrastive loss and a knowledge-aware matching loss to train the model. Experiments on three remote sensing text-image retrieval benchmarks (UCM-Caption, RSICD, RSITMD) show that KTIR outperforms state-of-the-art retrieval methods. The results demonstrate that integrating external knowledge can enrich the text content, alleviate the information gap between text and images, and improve the overall retrieval performance. Qualitative analysis shows that KTIR can better order the retrieved captions and images compared to the baseline model. It also exhibits better generalization to unseen concepts during open-set text-image retrieval. Ablation studies confirm the effectiveness of the cross-attention mechanism for fusing captions and knowledge, as well as the importance of the knowledge-aware matching loss in addition to the contrastive loss.
Stats
There are 10921 images with 5 sentences per image in the RSICD dataset. The RSITMD dataset contains 4743 images with 23715 captions and 21403 keywords.
Quotes
"By mining relevant information from an external knowledge graph, KTIR enriches the text scope available in the search query and alleviates the information gaps between texts and images for better matching." "Commonsense knowledge sources have been recognized as effective priors in many vision-and-language research to reveal commonsense and alleviate ambiguities."

Key Insights Distilled From

by Li Mi,Xianji... at arxiv.org 05-07-2024

https://arxiv.org/pdf/2405.03373.pdf
Knowledge-aware Text-Image Retrieval for Remote Sensing Images

Deeper Inquiries

How can the proposed KTIR method be extended to other vision-language tasks beyond text-image retrieval, such as image captioning or visual question answering?

The KTIR method can be extended to other vision-language tasks by leveraging the same principles of incorporating external knowledge to enhance the representation of both visual and textual information. For image captioning, the external knowledge graphs can provide additional context and semantic information that can enrich the captions generated by the model. By integrating relevant concepts and relations from external knowledge sources, the model can produce more informative and accurate image descriptions. This can help in generating captions that are not only descriptive but also contextually relevant and semantically coherent. Similarly, for visual question answering (VQA) tasks, the KTIR framework can be adapted to incorporate external knowledge to improve the understanding and reasoning capabilities of the model. By integrating relevant knowledge from external sources, the model can have access to a broader range of information to answer questions accurately. The external knowledge can provide additional context, background information, and common sense reasoning capabilities that can enhance the model's performance in VQA tasks. In both image captioning and VQA tasks, the KTIR method can be extended by fine-tuning the model on specific datasets related to these tasks and incorporating domain-specific knowledge to further improve performance. By adapting the architecture and loss functions of the KTIR framework to suit the requirements of image captioning and VQA tasks, the model can achieve state-of-the-art results in these vision-language applications.

How can the proposed KTIR method be extended to other vision-language tasks beyond text-image retrieval, such as image captioning or visual question answering?

The proposed KTIR method can be extended to other vision-language tasks by leveraging the same principles of incorporating external knowledge to enhance the representation of both visual and textual information. For image captioning, the external knowledge graphs can provide additional context and semantic information that can enrich the captions generated by the model. By integrating relevant concepts and relations from external knowledge sources, the model can produce more informative and accurate image descriptions. This can help in generating captions that are not only descriptive but also contextually relevant and semantically coherent. Similarly, for visual question answering (VQA) tasks, the KTIR framework can be adapted to incorporate external knowledge to improve the understanding and reasoning capabilities of the model. By integrating relevant knowledge from external sources, the model can have access to a broader range of information to answer questions accurately. The external knowledge can provide additional context, background information, and common sense reasoning capabilities that can enhance the model's performance in VQA tasks. In both image captioning and VQA tasks, the KTIR method can be extended by fine-tuning the model on specific datasets related to these tasks and incorporating domain-specific knowledge to further improve performance. By adapting the architecture and loss functions of the KTIR framework to suit the requirements of image captioning and VQA tasks, the model can achieve state-of-the-art results in these vision-language applications.

How can the proposed KTIR method be extended to other vision-language tasks beyond text-image retrieval, such as image captioning or visual question answering?

The KTIR method can be extended to other vision-language tasks by leveraging the same principles of incorporating external knowledge to enhance the representation of both visual and textual information. For image captioning, the external knowledge graphs can provide additional context and semantic information that can enrich the captions generated by the model. By integrating relevant concepts and relations from external knowledge sources, the model can produce more informative and accurate image descriptions. This can help in generating captions that are not only descriptive but also contextually relevant and semantically coherent. Similarly, for visual question answering (VQA) tasks, the KTIR framework can be adapted to incorporate external knowledge to improve the understanding and reasoning capabilities of the model. By integrating relevant knowledge from external sources, the model can have access to a broader range of information to answer questions accurately. The external knowledge can provide additional context, background information, and common sense reasoning capabilities that can enhance the model's performance in VQA tasks. In both image captioning and VQA tasks, the KTIR method can be extended by fine-tuning the model on specific datasets related to these tasks and incorporating domain-specific knowledge to further improve performance. By adapting the architecture and loss functions of the KTIR framework to suit the requirements of image captioning and VQA tasks, the model can achieve state-of-the-art results in these vision-language applications.
0
visual_icon
generate_icon
translate_icon
scholar_search_icon
star