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SelectVision: Adaptive Vision Resolution Selection for Visual Document Understanding

delete2026-01-01
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PRE
AI
Z
Zhongjiang He
Y
Ye Yuan
A
An Zhao
H
Han Fang
H
Hao Sun
K
Kongming Liang
马
马占宇 (Zhanyu Ma) *
DOI:10.1007/978-3-032-04627-7_23delete
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摘要

摘要

En 中文
近期大型多模态语言模型的显著进展通过有效对齐视觉和语言,极大地提升了跨模态理解能力。然而,由于文档图像具有高分辨率、密集文本和复杂布局的特点,这些方法在视觉文档理解(VDU)方面仍面临挑战,主要归因于其捕捉细粒度信息和关系的能力有限。为解决这些挑战,我们提出了一种新颖的自适应分辨率选择框架。该框架包含两个关键组件:(1)分辨率切片选择器,通过选择分辨率来捕捉文档信息密度并执行自适应补丁切片;(2)带有混合偏好优化的多阶段训练策略。后者利用偏好对来引导选择器,将高分辨率表示分配给信息密集且字体较小的区域,同时将低分辨率表示应用于冗余信息区域。该方法在保持建模效率的同时捕捉了细粒度视觉表示。凭借这些组件,SelectVision在效率和性能方面均实现了显著提升。我们的实验表明,SelectVision在包括ChartQA(84.3%)、WTQ(59.2%)和TabFact(83.9%)在内的多种评估数据集上均取得了有前景的结果。
Keyword:
Visual Token Selection
Multimodal Large Language Models
Document Understanding

期刊

D
DOCUMENT ANALYSIS AND RECOGNITION-ICDAR 2025, PT IV
IF:
0
论文数:
32
被引数:
0

机构

B
beijing university of posts & telecommunications
学者数:
1.4W
论文数: 1.2W
被引数: 9
引用论文

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