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arXiv 2505.12237cs.CV

从镜头到故事:基于统一语言表示的LLM辅助视频编辑

From Shots to Stories: LLM-Assisted Video Editing with Unified Language Representations

Shanghai University(上海大学)

Yuzhi Li, Haojun Xu, Feng Tian

AI总结:

该研究首次系统探索LLM在视频编辑中的应用,提出中间表示L-Storyboard实现视觉信息到结构化语言描述的转换,设计StoryFlow策略解决发散型任务输出不稳定问题,有效提升视频编辑任务的性能、可解释性与隐私保护能力。

摘要:

大语言模型(LLMs)和视觉语言模型(VLMs)已在视频理解领域展现出卓越的推理与泛化能力,但其在视频编辑中的应用仍有待深入探索。本文首次针对视频编辑场景下的LLM应用展开系统性研究。为弥合视觉信息与基于语言的推理之间的鸿沟,我们提出L-Storyboard这一中间表示形式,可将离散的视频镜头转换为适合LLM处理的结构化语言描述。我们将视频编辑任务划分为收敛型任务和发散型任务,重点研究三项核心任务:镜头属性分类、下一个镜头选择以及镜头序列排序。为解决发散型任务输出固有的不稳定性问题,我们提出StoryFlow策略,将发散式多路径推理过程转换为收敛式选择机制,有效提升了任务准确率与逻辑连贯性。实验结果表明,L-Storyboard可实现视觉信息与语言描述之间更稳健的映射,显著提升视频编辑任务的可解释性与隐私保护能力。此外,StoryFlow增强了镜头序列排序任务中的逻辑一致性与输出稳定性,凸显了LLM在智能视频编辑领域的巨大潜力。

英文摘要:

Large Language Models (LLMs) and Vision-Language Models (VLMs) have demonstrated remarkable reasoning and generalization capabilities in video understanding; however, their application in video editing remains largely underexplored. This paper presents the first systematic study of LLMs in the context of video editing. To bridge the gap between visual information and language-based reasoning, we introduce L-Storyboard, an intermediate representation that transforms discrete video shots into structured language descriptions suitable for LLM processing. We categorize video editing tasks into Convergent Tasks and Divergent Tasks, focusing on three core tasks: Shot Attributes Classification, Next Shot Selection, and Shot Sequence Ordering. To address the inherent instability of divergent task outputs, we propose the StoryFlow strategy, which converts the divergent multi-path reasoning process into a convergent selection mechanism, effectively enhancing task accuracy and logical coherence. Experimental results demonstrate that L-Storyboard facilitates a more robust mapping between visual information and language descriptions, significantly improving the interpretability and privacy protection of video editing tasks. Furthermore, StoryFlow enhances the logical consistency and output stability in Shot Sequence Ordering, underscoring the substantial potential of LLMs in intelligent video editing.

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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