OBIFormer: A Fast Attentive Denoising Framework for Oracle Bone Inscriptions

Fuente: arXiv
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Main Authors: Li, Jinhao, Chen, Zijian, Chen, Tingzhu, Liu, Zhiji, Wang, Changbo
Format: Preprint
Published: 2025
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author Li, Jinhao
Chen, Zijian
Chen, Tingzhu
Liu, Zhiji
Wang, Changbo
author_facet Li, Jinhao
Chen, Zijian
Chen, Tingzhu
Liu, Zhiji
Wang, Changbo
contents Oracle bone inscriptions (OBIs) are the earliest known form of Chinese characters and serve as a valuable resource for research in anthropology and archaeology. However, most excavated fragments are severely degraded due to thousands of years of natural weathering, corrosion, and man-made destruction, making automatic OBI recognition extremely challenging. Previous methods either focus on pixel-level information or utilize vanilla transformers for glyph-based OBI denoising, which leads to tremendous computational overhead. Therefore, this paper proposes a fast attentive denoising framework for oracle bone inscriptions, i.e., OBIFormer. It leverages channel-wise self-attention, glyph extraction, and selective kernel feature fusion to reconstruct denoised images precisely while being computationally efficient. Our OBIFormer achieves state-of-the-art denoising performance for PSNR and SSIM metrics on synthetic and original OBI datasets. Furthermore, comprehensive experiments on a real oracle dataset demonstrate the great potential of our OBIFormer in assisting automatic OBI recognition. The code will be made available at https://github.com/LJHolyGround/OBIFormer.
format Preprint
id arxiv_https___arxiv_org_abs_2504_13524
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle OBIFormer: A Fast Attentive Denoising Framework for Oracle Bone Inscriptions
Li, Jinhao
Chen, Zijian
Chen, Tingzhu
Liu, Zhiji
Wang, Changbo
Computer Vision and Pattern Recognition
Oracle bone inscriptions (OBIs) are the earliest known form of Chinese characters and serve as a valuable resource for research in anthropology and archaeology. However, most excavated fragments are severely degraded due to thousands of years of natural weathering, corrosion, and man-made destruction, making automatic OBI recognition extremely challenging. Previous methods either focus on pixel-level information or utilize vanilla transformers for glyph-based OBI denoising, which leads to tremendous computational overhead. Therefore, this paper proposes a fast attentive denoising framework for oracle bone inscriptions, i.e., OBIFormer. It leverages channel-wise self-attention, glyph extraction, and selective kernel feature fusion to reconstruct denoised images precisely while being computationally efficient. Our OBIFormer achieves state-of-the-art denoising performance for PSNR and SSIM metrics on synthetic and original OBI datasets. Furthermore, comprehensive experiments on a real oracle dataset demonstrate the great potential of our OBIFormer in assisting automatic OBI recognition. The code will be made available at https://github.com/LJHolyGround/OBIFormer.
title OBIFormer: A Fast Attentive Denoising Framework for Oracle Bone Inscriptions
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2504.13524