Cited by 180Multimodal Machine Learning ApplicationsHuman Pose and Action RecognitionVideo Analysis and Summarization

MovieChat: From Dense Token to Sparse Memory for Long Video Understanding

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Song, Enxin, Chai, Wenhao, Wang, Guanhong, Zhang, Yucheng, Zhou, Haoyang, Wu, Feiyang, Chi, Haozhe, Guo, Xun +5 more·2024·2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)

Abstract

Recently, integrating video foundation models and large language models to build a video understanding system can overcome the limitations of specific pre-defined vision tasks. Yet, existing systems can only handle videos with very few frames. For long videos, the computation complexity, memory cost, and long-term temporal connection impose additional challenges. Taking advantage of the Atkinson-Shiffrin memory model, with tokens in Transformers being employed as the carriers of memory in combination with our specially designed memory mechanism, we propose the MovieChat to overcome these challenges. MovieChat achieves state-of-the-art performance in long video understanding, along with the released MovieChat-1K benchmark with 1K long video and 14K manual annotations for validation of the effectiveness of our method. The code, models and data can be found in https://reself.github.io/MovieChat.

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  • By making plans and structured environment representations the readable and writable core of working memory, agents can maintain goal consistency and revise strategies robustly against perception failures.

    “By making plans and structured environment representations the readable and writable core of working memory, agents can maintain goal consistency and revise strategies robustly against perception failures (Song et al., 2023).”

    From Memory in the Age of AI Agents (2025) · cites this paper as Song et al., 2023

    Sections 1 (Introduction) and 3.3 (Short-term Memory) describe buffers of visual tokens for long-video understanding, not plans or structured environment representations used as readable and writable working memory. A search for goal consistency, strategy revision, and robustness to perception failures found no passage addressing those claims. Page numbers were not available in our copy. (LLM, conf=0.75)

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Research works printed but not linked: 6

  1. George Awad, Asad A Butt, Keith Curtis, Yooyoung Lee, Jonathan Fiscus, Afzad Godil, David Joy, Andrew Delgado, Alan F Smeaton, Yvette Graham, et al. Trecvid 2018: Benchmarking video activity detection, video captioning and matching, video storytelling linking and video search. In Proceedings of TRECVID 2018, 2018. 2
  2. Max Bain, Arsha Nagrani, Gül Varol, and Andrew Zisser- man. Frozen in time: A joint video and image encoder for end-to-end retrieval. In Proceedings of the IEEE/CVF Inter- national Conference on Computer Vision, pages 1728-1738, 2021. 2
  3. Max Bain, Arsha Nagrani, Gül Varol, and Andrew Zisser- man. Frozen in time: A joint video and image encoder for end-to-end retrieval. CoRR, abs/2104.00650, 2021. 14 · arXiv
  4. Difei Gao, Luowei Zhou, Lei Ji, Linchao Zhu, Yi Yang, and Mike Zheng Shou. Mist: Multi-modal iterative spatial- temporal transformer for long-form video question answer- ing. In Proceedings of the IEEE/CVF Conference on Com- puter Vision and Pattern Recognition, pages 14773-14783, 2023. 2
  5. Junnan Li, Dongxu Li, Silvio Savarese, and Steven Hoi. Blip-2: Bootstrapping language-image pre-training with frozen image encoders and large language models. arXiv preprint arXiv:2301.12597, 2023. 1, 2 · arXiv
  6. OpenAI. Gpt-4 technical report. arXiv preprint arXiv:2303.08774, 2023. 1, 2 · arXiv

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Authors
Song, E., Chai, W., Wang, G., Zhang, Y., Zhou, H., Wu, F., Chi, H., Guo, X., Ye, T., Zhang, Y., Lu, Y., Hwang, J.-N., & Wang, G.
Affiliations
  • Zhejiang University (CN)
  • University of Washington (US)
  • Donghua University (CN)
  • Microsoft Research Asia (China) (CN)
  • Hong Kong University of Science and Technology (GZ)
Venue
2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)
Publisher
IEEE
Published
2024-06-16
Pages
18221-18232
ISSN
1063-6919 (ISSN-L)
OpenAlex
W4402702917
Cited by
176
References
76
Citations by year
2026: 82 · 2025: 60 · 2024: 32 · 2023: 2
FWCI
35.92
Type
conference paper
Language
en
Open access
Locations
  • IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings - IEEE Computer Society Conference on Computer Vision and Pattern Recognition/Proceedings (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • Rare & Special e-Zone (The Hong Kong University of Science and Technology) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • National Key R&D Program of China (2022ZD0162000)
  • National Natural Science Foundation of China (62106219,62206046)
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Multimodal Machine Learning Applications
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Human Pose and Action Recognition
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Video Analysis and Summarization
Keywords
long video understanding, video foundation models, large language models, temporal relations

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