Towards Signboard-Oriented Visual Question Answering: ViSignVQA Dataset, Method and Benchmark

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Hauptverfasser: Nguyen, Hieu Minh, Dang, Tam Le-Thanh, Van Nguyen, Kiet
Format: Preprint
Veröffentlicht: 2025
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author Nguyen, Hieu Minh
Dang, Tam Le-Thanh
Van Nguyen, Kiet
author_facet Nguyen, Hieu Minh
Dang, Tam Le-Thanh
Van Nguyen, Kiet
contents Understanding signboard text in natural scenes is essential for real-world applications of Visual Question Answering (VQA), yet remains underexplored, particularly in low-resource languages. We introduce ViSignVQA, the first large-scale Vietnamese dataset designed for signboard-oriented VQA, which comprises 10,762 images and 25,573 question-answer pairs. The dataset captures the diverse linguistic, cultural, and visual characteristics of Vietnamese signboards, including bilingual text, informal phrasing, and visual elements such as color and layout. To benchmark this task, we adapted state-of-the-art VQA models (e.g., BLIP-2, LaTr, PreSTU, and SaL) by integrating a Vietnamese OCR model (SwinTextSpotter) and a Vietnamese pretrained language model (ViT5). The experimental results highlight the significant role of the OCR-enhanced context, with F1-score improvements of up to 209% when the OCR text is appended to questions. Additionally, we propose a multi-agent VQA framework combining perception and reasoning agents with GPT-4, achieving 75.98% accuracy via majority voting. Our study presents the first large-scale multimodal dataset for Vietnamese signboard understanding. This underscores the importance of domain-specific resources in enhancing text-based VQA for low-resource languages. ViSignVQA serves as a benchmark capturing real-world scene text characteristics and supporting the development and evaluation of OCR-integrated VQA models in Vietnamese.
format Preprint
id arxiv_https___arxiv_org_abs_2512_22218
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Towards Signboard-Oriented Visual Question Answering: ViSignVQA Dataset, Method and Benchmark
Nguyen, Hieu Minh
Dang, Tam Le-Thanh
Van Nguyen, Kiet
Computer Vision and Pattern Recognition
Multimedia
Understanding signboard text in natural scenes is essential for real-world applications of Visual Question Answering (VQA), yet remains underexplored, particularly in low-resource languages. We introduce ViSignVQA, the first large-scale Vietnamese dataset designed for signboard-oriented VQA, which comprises 10,762 images and 25,573 question-answer pairs. The dataset captures the diverse linguistic, cultural, and visual characteristics of Vietnamese signboards, including bilingual text, informal phrasing, and visual elements such as color and layout. To benchmark this task, we adapted state-of-the-art VQA models (e.g., BLIP-2, LaTr, PreSTU, and SaL) by integrating a Vietnamese OCR model (SwinTextSpotter) and a Vietnamese pretrained language model (ViT5). The experimental results highlight the significant role of the OCR-enhanced context, with F1-score improvements of up to 209% when the OCR text is appended to questions. Additionally, we propose a multi-agent VQA framework combining perception and reasoning agents with GPT-4, achieving 75.98% accuracy via majority voting. Our study presents the first large-scale multimodal dataset for Vietnamese signboard understanding. This underscores the importance of domain-specific resources in enhancing text-based VQA for low-resource languages. ViSignVQA serves as a benchmark capturing real-world scene text characteristics and supporting the development and evaluation of OCR-integrated VQA models in Vietnamese.
title Towards Signboard-Oriented Visual Question Answering: ViSignVQA Dataset, Method and Benchmark
topic Computer Vision and Pattern Recognition
Multimedia
url https://arxiv.org/abs/2512.22218