arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2509.23517cs.CVcs.AI

评估多模态大语言模型中的光点生物运动

Evaluating point-light biological motion in multimodal large language models

Psychiatry and Biobehavioral Sciences, UCLA(乌尔拉克大学精神病学与生物行为科学系);Brain and Creativity Institute, USC(美国大学脑与创造力研究所);Google DeepMind, Zurich(谷歌深度Mind瑞士分公司)

Akila Kadambi, Marco Iacoboni, Lisa Aziz-Zadeh, Srini Narayanan

AI总结:

本文提出 ActPLD 基准,从单主体和社会互动光点生物运动评估先进 MLLM 的动作处理能力,发现模型表现持续较低,存在动作及时空理解的根本差距。

摘要:

人类能够从极少的视觉线索中提取丰富的语义信息,光点显示器(PLDs)就证明了这一点,它由定位在人体关键关节上的稀疏点集组成。这种能力在发育早期就会出现,并在很大程度上归因于人类的具身经验。由于 PLD 将身体运动隔离为唯一的意义来源,因此它们构成了检验这些系统中动作理解约束的关键刺激。本文提出 ActPLD,这是首个根据人类 PLD 评估 MLLM 中动作处理能力的基准。被测模型包括最先进的专有和开源系统,测试内容涵盖单主体 PLD 与社会互动 PLD。结果显示,各模型性能持续偏低,揭示出其在动作理解和时空理解方面存在根本性差距。

英文摘要:

Humans can extract rich semantic information from minimal visual cues, as demonstrated by point-light displays (PLDs), which consist of sparse sets of dots localized to key joints of the human body. This ability emerges early in development and is largely attributed to human embodied experience. Since PLDs isolate body motion as the sole source of meaning, they represent key stimuli for testing the constraints of action understanding in these systems. Here we introduce ActPLD, the first benchmark to evaluate action processing in MLLMs from human PLDs. Tested models include state-of-the-art proprietary and open-source systems on single-actor and socially interacting PLDs. Our results reveal consistently low performance across models, introducing fundamental gaps in action and spatiotemporal understanding.

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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