Enabling Stroke-Level Structural Analysis of Hieroglyphic Scripts without Language-Specific Priors

Fuente: arXiv
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Autores principales: Luo, Fuwen, Wan, Zihao, Wang, Ziyue, Liu, Yaluo, Xu, Pau Tong Lin, Qiao, Xuanjia, Wang, Xiaolong, Li, Peng, Liu, Yang
Formato: Preprint
Publicado: 2026
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author Luo, Fuwen
Wan, Zihao
Wang, Ziyue
Liu, Yaluo
Xu, Pau Tong Lin
Qiao, Xuanjia
Wang, Xiaolong
Li, Peng
Liu, Yang
author_facet Luo, Fuwen
Wan, Zihao
Wang, Ziyue
Liu, Yaluo
Xu, Pau Tong Lin
Qiao, Xuanjia
Wang, Xiaolong
Li, Peng
Liu, Yang
contents Hieroglyphs, as logographic writing systems, encode rich semantic and cultural information within their internal structural composition. Yet, current advanced Large Language Models (LLMs) and Multimodal LLMs (MLLMs) usually remain structurally blind to this information. LLMs process characters as textual tokens, while MLLMs additionally view them as raw pixel grids. Both fall short to model the underlying logic of character strokes. Furthermore, existing structural analysis methods are often script-specific and labor-intensive. In this paper, we propose Hieroglyphic Stroke Analyzer (HieroSA), a novel and generalizable framework that enables MLLMs to automatically derive stroke-level structures from character bitmaps without handcrafted data. It transforms modern logographic and ancient hieroglyphs character images into explicit, interpretable line-segment representations in a normalized coordinate space, allowing for cross-lingual generalization. Extensive experiments demonstrate that HieroSA effectively captures character-internal structures and semantics, bypassing the need for language-specific priors. Experimental results highlight the potential of our work as a graphematics analysis tool for a deeper understanding of hieroglyphic scripts. View our code at https://github.com/THUNLP-MT/HieroSA.
format Preprint
id arxiv_https___arxiv_org_abs_2601_05508
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Enabling Stroke-Level Structural Analysis of Hieroglyphic Scripts without Language-Specific Priors
Luo, Fuwen
Wan, Zihao
Wang, Ziyue
Liu, Yaluo
Xu, Pau Tong Lin
Qiao, Xuanjia
Wang, Xiaolong
Li, Peng
Liu, Yang
Computer Vision and Pattern Recognition
Computation and Language
Hieroglyphs, as logographic writing systems, encode rich semantic and cultural information within their internal structural composition. Yet, current advanced Large Language Models (LLMs) and Multimodal LLMs (MLLMs) usually remain structurally blind to this information. LLMs process characters as textual tokens, while MLLMs additionally view them as raw pixel grids. Both fall short to model the underlying logic of character strokes. Furthermore, existing structural analysis methods are often script-specific and labor-intensive. In this paper, we propose Hieroglyphic Stroke Analyzer (HieroSA), a novel and generalizable framework that enables MLLMs to automatically derive stroke-level structures from character bitmaps without handcrafted data. It transforms modern logographic and ancient hieroglyphs character images into explicit, interpretable line-segment representations in a normalized coordinate space, allowing for cross-lingual generalization. Extensive experiments demonstrate that HieroSA effectively captures character-internal structures and semantics, bypassing the need for language-specific priors. Experimental results highlight the potential of our work as a graphematics analysis tool for a deeper understanding of hieroglyphic scripts. View our code at https://github.com/THUNLP-MT/HieroSA.
title Enabling Stroke-Level Structural Analysis of Hieroglyphic Scripts without Language-Specific Priors
topic Computer Vision and Pattern Recognition
Computation and Language
url https://arxiv.org/abs/2601.05508