arXiv:2603.00165cs.CV2026-03

通过整合注意力信号提升视觉问答的定位准确率

ConFoThinking: Consolidated Focused Attention Driven Thinking for Visual Question Answering

  • 在中间层聚合多层注意力,实现更精准的视觉区域聚焦
  • 使用简洁语义线索提取注意力,减少问题文本带来的干扰
  • 在五个VQA基准上显著提升模型感知性能,适合需要精准定位的场景

让模型‘思考图像’可提升多模态大模型在细粒度视觉问答中的表现,但依赖定位能力的工具增强方法对多模态大模型仍不可靠。同时,基于注意力裁剪感兴趣区域(ROIs)的方法受限于:(1)注意力信号分散在各层,导致定位不准确;(2)依赖问题或冗余文本生成注意力。我们分析发现三个规律:多模态大模型可能关注正确区域却生成错误坐标,‘看哪里’的注意力在层间碎片化,且注意力提取对查询敏感。为此,提出ConFoThinking框架——在指定中间层聚合注意力,并从中挖掘显著区域进行深入理解。同时,采用简洁的语义线索(what to look into)提取注意力,降低问题或冗余文本引入的语义噪声。在五个VQA基准上的实验表明,ConFoThinking显著提升感知性能。代码、模型检查点与数据集将在录用后公开。

原文摘要 · Abstract (English)

Thinking with Images improves fine-grained VQA for MLLMs by emphasizing visual cues. However, tool-augmented methods depend on the capacity of grounding, which remains unreliable for MLLMs. In parallel, attention-driven methods to crop the Region of Interest (ROIs) are proposed but they are constrained by (1) fragmented attention signals scattered across layers, leading to suboptimal localization and (2) relying on question- or redundant-text-conditioned attention extraction. Our analysis reveals three patterns: MLLMs may attend to the correct region yet generate incorrect coordinates, where-to-look attention is often fragmented across layers, and attention extraction is query-sensitive. Motivated by these, We propose ConFoThinking, a Consolidated-Focused-Attention-Driven Thinking framework that learns to aggregate attention into a designated intermediate layer, from which we mine and zoom in salient regions for downstream visual understanding. Moreover, we extract attention using concise semantic cues of what to look into, which mitigates the semantic noise introduced by question- or redundant-text-based attention extraction. Experiments across five VQA benchmarks demonstrate ConFoThinking significantly improves perception performance. The code, checkpoints, and dataset will be released after being accepted.

视觉问答注意力机制多模态模型

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