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arXiv · 2403.10517

VideoAgent: Long-form Video Understanding with Large Language Model as Agent

Xiaohan Wang·Yuhui Zhang·Orr Zohar·Serena Yeung-Levy
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Abstract

Long-form video understanding represents a significant challenge within computer vision, demanding a model capable of reasoning over long multi-modal sequences. Motivated by the human cognitive process for long-form video understanding, we emphasize interactive reasoning and planning over the ability to process lengthy visual inputs. We introduce a novel agent-based system, VideoAgent, that employs a large language model as a central agent to iteratively identify and compile crucial information to answer a question, with vision-language foundation models serving as tools to translate and retrieve visual information. Evaluated on the challenging EgoSchema and NExT-QA benchmarks, VideoAgent achieves 54.1% and 71.3% zero-shot accuracy with only 8.4 and 8.2 frames used on average. These results demonstrate superior effectiveness and efficiency of our method over the current state-of-the-art methods, highlighting the potential of agent-based approaches in advancing long-form video understanding.

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Xiaohan Wang, Yuhui Zhang, Orr Zohar, Serena Yeung-Levy. 2024-03-15. VideoAgent: Long-form Video Understanding with Large Language Model as Agent. https://arxiv.org/abs/2403.10517

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