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arXiv 2406.09646cs.CVcs.AI
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面向接地事件理解的视频数据集综述

A Survey of Video Datasets for Grounded Event Understanding

Johns Hopkins University(约翰斯·霍普金斯大学)

Kate Sanders, Benjamin Van Durme

AI总结:

本文调研105个需要事件理解能力的视频数据集,梳理事件抽取任务定义与资源局限,并就数据集策划和任务构建提出建议。

摘要:

尽管现有视频基准主要考虑检索或问答(QA)等专门的下游任务,但当代多模态 AI 系统必须具备类似于人类视觉理解的全面常识推理能力。人类时间-视觉感知的一个关键组成部分,是我们识别并在认知上建模“正在发生的事情”(即事件)的能力。从历史上看,视频基准任务一直在隐含地测试这种能力(例如,视频字幕生成,模型用自然语言描述视觉事件),但它们并未将视频事件理解本身视为一项任务。近期工作已开始探索文本事件抽取的视频对应物,却由相互竞争的任务定义组成,且数据集局限于高度特定的事件类型。因此,尽管过去十多年间存在丰富的、以事件为中心的视频研究领域,但应如何界定视频事件理解,以及我们有哪些资源来研究它,仍不明确。在本文中,我们调研了 105 个需要事件理解能力的视频数据集,考察它们如何助力研究视频中稳健的事件理解,并在这一研究整体背景下评估已提出的视频事件抽取任务。基于本次调研,我们针对数据集策划和任务框架提出建议,重点强调视频事件独特的时间性质以及视觉内容中的歧义性。

英文摘要:

While existing video benchmarks largely consider specialized downstream tasks like retrieval or question-answering (QA), contemporary multimodal AI systems must be capable of well-rounded common-sense reasoning akin to human visual understanding. A critical component of human temporal-visual perception is our ability to identify and cognitively model "things happening", or events. Historically, video benchmark tasks have implicitly tested for this ability (e.g., video captioning, in which models describe visual events with natural language), but they do not consider video event understanding as a task in itself. Recent work has begun to explore video analogues to textual event extraction but consists of competing task definitions and datasets limited to highly specific event types. Therefore, while there is a rich domain of event-centric video research spanning the past 10+ years, it is unclear how video event understanding should be framed and what resources we have to study it. In this paper, we survey 105 video datasets that require event understanding capability, consider how they contribute to the study of robust event understanding in video, and assess proposed video event extraction tasks in the context of this body of research. We propose suggestions informed by this survey for dataset curation and task framing, with an emphasis on the uniquely temporal nature of video events and ambiguity in visual content.

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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