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arXiv 2506.08391cs.CV

SECOND:通过选择性和对比性解码缓解视觉-语言模型中的感知幻觉

SECOND: Mitigating Perceptual Hallucination in Vision-Language Models via Selective and Contrastive Decoding

Department of Electrical and Computer Engineering, Seoul National University(首尔大学电气与计算机工程系);Interdisciplinary Program in Artificial Intelligence, Seoul National University(首尔大学人工智能跨学科项目)

Woohyeon Park, Woojin Kim, Jaeik Kim, Jaeyoung Do

AI总结:

本文提出SECOND方法,通过选择性与对比性解码机制,有效利用多尺度视觉信息,减少视觉语言模型中的感知幻觉并提升性能。

摘要:

尽管视觉-语言模型(VLMs)取得了显著进展,但现有模型的性能仍受物体幻觉的阻碍,这是实现准确视觉理解的关键挑战。为了解决这一问题,我们提出了SECOND:选择性和对比性解码,一种新的方法,使VLMs能够以以对象为中心的方式有效利用多尺度视觉信息,与人类视觉感知紧密对齐。SECOND逐步选择并整合多尺度视觉信息,促进对图像的更精确解释。通过迭代对比这些视觉信息,SECOND显著减少了感知幻觉,并在多个基准测试中表现优异。我们的理论分析和实验强调了多尺度应用在VLMs中的巨大潜力,表明在尺度上优先和对比优于现有方法。

英文摘要:

Despite significant advancements in Vision-Language Models (VLMs), the performance of existing VLMs remains hindered by object hallucination, a critical challenge to achieving accurate visual understanding. To address this issue, we propose SECOND: Selective and Contrastive Decoding, a novel approach that enables VLMs to effectively leverage multi-scale visual information with an object-centric manner, closely aligning with human visual perception. SECOND progressively selects and integrates multi-scale visual information, facilitating a more precise interpretation of images. By contrasting these visual information iteratively, SECOND significantly reduces perceptual hallucinations and outperforms a wide range of benchmarks. Our theoretical analysis and experiments highlight the largely unexplored potential of multi-scale application in VLMs, showing that prioritizing and contrasting across scales outperforms existing methods.

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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