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POINTS-Reader: Distillation-Free Adaptation of Vision-Language Models for Document Conversion

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arxiv 2509.01215 v1 pith:X73FDBX6 submitted 2025-09-01 cs.CV

POINTS-Reader: Distillation-Free Adaptation of Vision-Language Models for Document Conversion

Yuan Liu , Zhongyin Zhao , Le Tian , Haicheng Wang , Xubing Ye , Yangxiu You , Zilin Yu , Chuhan Wu
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Xiao Zhou Yang Yu Jie Zhou
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classification cs.CV
keywords modelmodelsdatadocumentconversionpoints-readerannotationdistillation-free
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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High-quality labeled data is essential for training accurate document conversion models, particularly in domains with complex formats such as tables, formulas, and multi-column text. However, manual annotation is both costly and time-consuming, while automatic labeling using existing models often lacks accuracy in handling such challenging scenarios. Consequently, training student models by distilling outputs from teacher models can significantly limit their performance in real-world applications. In this paper, we propose a fully automated, distillation-free framework comprising two stages for constructing high-quality document extraction datasets and models capable of handling diverse document formats and layouts. In the first stage, we introduce a method for generating large-scale, diverse synthetic data, which enables a model to extract key elements in a unified format with strong initial performance. In the second stage, we present a self-improvement approach that further adapts the model, initially trained on synthetic data, to real-world documents. Specifically, we first use the fine-tuned model to annotate real documents, then apply a suite of filtering strategies to verify annotation quality, and finally retrain the model on the verified dataset. By iteratively repeating this process, we progressively enhance both the model's conversion capabilities and the quality of the generated data. We train a public POINTS-1.5 model to obtain POINTS-Reader, which surpasses many existing public and proprietary models of comparable or larger size. Our model is available at https://github.com/Tencent/POINTS-Reader.

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Cited by 8 Pith papers

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