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arXiv 2511.14028cs.CV

LINGUAL:面向医学图像分割主动学习的语言集成引导框架

LINGUAL: Language-INtegrated GUidance in Active Learning for Medical Image Segmentation

UC Riverside(加州大学河滨分校);Samsung Research America(三星美国研究机构)

Md Shazid Islam, Shreyangshu Bera, Sudipta Paul, Amit K. Roy-Chowdhury

AI总结:

针对医学图像分割主动学习标注成本高、认知负担重的问题,提出LINGUAL语言集成引导框架,通过自然语言指令转可执行程序自动完成子任务,性能优于基线且标注时间降约80%。

摘要:

尽管分割任务中的主动学习(AL)可让专家仅标注选定的感兴趣区域(ROI)而非整幅图像,但医学图像中普遍存在的模糊、边界不清问题,仍让该任务难度高、劳动强度大且认知负担重。此外传统主动学习中,标注工作量与ROI直接相关:更大的区域认知难度更低但标注成本更高,更小的区域则要求专家投入更高精度与更多注意力。在此背景下,语言引导提供了有效替代方案,仅需极少专家投入,即可规避分割中高精度边界勾勒的高认知负荷任务。为此我们提出LINGUAL框架:该框架接收专家给出的自然语言指令,通过上下文学习将其转换为可执行程序,无需人工干预即可自动执行对应子任务序列。我们在主动域适配(ADA)任务上验证了LINGUAL的有效性,其性能与主动学习基线相当甚至更优,同时将预估标注时间降低了约80%。

英文摘要:

Although active learning (AL) in segmentation tasks enables experts to annotate selected regions of interest (ROIs) instead of entire images, it remains highly challenging, labor-intensive, and cognitively demanding due to the blurry and ambiguous boundaries commonly observed in medical images. Also, in conventional AL, annotation effort is a function of the ROI- larger regions make the task cognitively easier but incur higher annotation costs, whereas smaller regions demand finer precision and more attention from the expert. In this context, language guidance provides an effective alternative, requiring minimal expert effort while bypassing the cognitively demanding task of precise boundary delineation in segmentation. Towards this goal, we introduce LINGUAL: a framework that receives natural language instructions from an expert, translates them into executable programs through in-context learning, and automatically performs the corresponding sequence of sub-tasks without any human intervention. We demonstrate the effectiveness of LINGUAL in active domain adaptation (ADA) achieving comparable or superior performance to AL baselines while reducing estimated annotation time by approximately 80%.

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。

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