arXivDaily arXiv每日学术速递 周一至周五更新
​通知:联邦节假日调休:哥伦布日 / 原住民日(Columbus Day / Indigenous Peoples' Day),今日(13日)无更新。
arXiv 2606.06760cs.CV

MedSIGHT:迈向医学大型视觉语言模型中的基础视觉理解

MedSIGHT: Towards Grounded Visual Comprehension in Medical Large Vision-Language Models

University of California, Berkeley(加州大学伯克利分校)

Aofei Chang, Le Huang, Alex James Boyd, Parminder Bhatia, Taha Kass-Hout, Fenglong Ma, Cao Xiao

AI总结:

提出MedSIGHT框架,通过区域感知器、医学区域码本和渐进训练策略,统一医学视觉语言模型的语义理解和像素级分割,在72K数据上达到多模态理解与分割的SOTA。

摘要:

医学大型视觉语言模型(Med-LVLMs)最近在视觉语言理解和医学图像分割方面取得了显著进展。然而,现有模型仍难以统一这两种能力,而这对于实现连接视觉发现与语义解释的临床推理至关重要。我们提出MedSIGHT,一个统一框架,赋予Med-LVLMs结构化的像素级理解能力,实现基础视觉理解。MedSIGHT引入了一个新颖的区域感知器模块,生成以区域为中心的标记,将空间信息直接编码到语言模型的表示空间中。我们进一步将医学区域码本引入LLM词汇表,使模型能够生成离散的区域代码,作为解剖和病理区域的符号表示。这些代码通过区域感知器解码以重建分割掩码,实现端到端的空间基础。最后,MedSIGHT使用我们提出的渐进训练策略,将区域感知器、码本和LLM组合起来,逐步稳定地对齐这些模块。仅在72K多模态指令对上训练,MedSIGHT在多种成像模态的医学理解和分割任务上均达到了最先进的性能。

英文摘要:

Medical large vision-language models (Med-LVLMs) have recently achieved remarkable progress in vision-language comprehension and medical image segmentation. However, existing models still struggle to unify these two capabilities, which is essential for achieving clinically reasoning that connects visual findings with semantic interpretation. We present MedSIGHT, a unified framework that equips Med-LVLMs with structured, pixel-level understanding for grounded visual comprehension. MedSIGHT introduces a novel Region Perceiver module that produces region-centric tokens, encoding spatial information directly into representation space of the language model. We further propose a medical region codebook into the LLM vocabulary, allowing the model to generate discrete region codes as symbolic representations of anatomical and pathological regions. These codes are decoded through the Region Perceiver to reconstruct segmentation mask, achieving end-to-end spatial grounding. Lastly, MedSIGHT combines Region Perceiver, Codebook and LLM using our proposed progressive training strategy to gradually aligns these modules stably. Trained on only 72K multimodal instruction pairs, MedSIGHT achieves state-of-the-art performance across diverse imaging modalities on both medical comprehension and segmentation tasks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑