SuperCap: Multi-resolution Superpixel-based Image Captioning

Fuente: arXiv
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Hauptverfasser: Senior, Henry, Rossi, Luca, Slabaugh, Gregory, Yuan, Shanxin
Format: Preprint
Veröffentlicht: 2025
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author Senior, Henry
Rossi, Luca
Slabaugh, Gregory
Yuan, Shanxin
author_facet Senior, Henry
Rossi, Luca
Slabaugh, Gregory
Yuan, Shanxin
contents It has been a longstanding goal within image captioning to move beyond a dependence on object detection. We investigate using superpixels coupled with Vision Language Models (VLMs) to bridge the gap between detector-based captioning architectures and those that solely pretrain on large datasets. Our novel superpixel approach ensures that the model receives object-like features whilst the use of VLMs provides our model with open set object understanding. Furthermore, we extend our architecture to make use of multi-resolution inputs, allowing our model to view images in different levels of detail, and use an attention mechanism to determine which parts are most relevant to the caption. We demonstrate our model's performance with multiple VLMs and through a range of ablations detailing the impact of different architectural choices. Our full model achieves a competitive CIDEr score of $136.9$ on the COCO Karpathy split.
format Preprint
id arxiv_https___arxiv_org_abs_2503_08496
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle SuperCap: Multi-resolution Superpixel-based Image Captioning
Senior, Henry
Rossi, Luca
Slabaugh, Gregory
Yuan, Shanxin
Computer Vision and Pattern Recognition
It has been a longstanding goal within image captioning to move beyond a dependence on object detection. We investigate using superpixels coupled with Vision Language Models (VLMs) to bridge the gap between detector-based captioning architectures and those that solely pretrain on large datasets. Our novel superpixel approach ensures that the model receives object-like features whilst the use of VLMs provides our model with open set object understanding. Furthermore, we extend our architecture to make use of multi-resolution inputs, allowing our model to view images in different levels of detail, and use an attention mechanism to determine which parts are most relevant to the caption. We demonstrate our model's performance with multiple VLMs and through a range of ablations detailing the impact of different architectural choices. Our full model achieves a competitive CIDEr score of $136.9$ on the COCO Karpathy split.
title SuperCap: Multi-resolution Superpixel-based Image Captioning
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2503.08496