Multimodal Data Augmentation for Image Captioning using Diffusion Models

• URL: http://arxiv.org/abs/2305.01855v1
• Date: Wed, 3 May 2023 01:57:33 GMT
• Title: Multimodal Data Augmentation for Image Captioning using Diffusion Models
• Authors: Changrong Xiao, Sean Xin Xu, Kunpeng Zhang
• Abstract summary: We propose a data augmentation method, leveraging a text-to-image model called Stable Diffusion, to expand the training set. Experiments on the MS COCO dataset demonstrate the advantages of our approach over several benchmark methods. Further improvement regarding the training efficiency and effectiveness can be obtained after intentionally filtering the generated data.
• Score: 12.221685807426264
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Image captioning, an important vision-language task, often requires a tremendous number of finely labeled image-caption pairs for learning the underlying alignment between images and texts. In this paper, we proposed a multimodal data augmentation method, leveraging a recent text-to-image model called Stable Diffusion, to expand the training set via high-quality generation of image-caption pairs. Extensive experiments on the MS COCO dataset demonstrate the advantages of our approach over several benchmark methods, and particularly a significant boost when having fewer training instances. In addition, models trained on our augmented datasets also outperform prior unpaired image captioning methods by a large margin. Finally, further improvement regarding the training efficiency and effectiveness can be obtained after intentionally filtering the generated data based on quality assessment.

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