Papers › EgoVLPv2: Egocentric Video-Language Pre-training with Fusion in the Backbone

EgoVLPv2: Egocentric Video-Language Pre-training with Fusion in the Backbone

11 Jul 2023ICCV 2023 1arXiv:2307.05463archive 2025-07-28

Shraman Pramanick, Yale Song, Sayan Nag, Kevin Qinghong Lin, Hardik Shah, Mike Zheng Shou, Rama Chellappa, Pengchuan Zhang

Video-language pre-training (VLP) has become increasingly important due to its ability to generalize to various vision and language tasks. However, existing egocentric VLP frameworks utilize separate video and language encoders and learn task-specific cross-modal information only during fine-tuning, limiting the development of a unified system. In this work, we introduce the second generation of egocentric video-language pre-training (EgoVLPv2), a significant improvement from the previous generation, by incorporating cross-modal fusion directly into the video and language backbones. EgoVLPv2 learns strong video-text representation during pre-training and reuses the cross-modal attention modules to support different downstream tasks in a flexible and efficient manner, reducing fine-tuning costs. Moreover, our proposed fusion in the backbone strategy is more lightweight and compute-efficient than stacking additional fusion-specific layers. Extensive experiments on a wide range of VL tasks demonstrate the effectiveness of EgoVLPv2 by achieving consistent state-of-the-art performance over strong baselines across all downstream. Our project page can be found at https://shramanpramanick.github.io/EgoVLPv2/.

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facebookresearch/EgoVLPv2 officialmentioned on GitHubpytorchMIT report

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Tasks

Action RecognitionMoment QueriesMulti-Instance RetrievalNatural Language QueriesQuestion AnsweringVideo Summarization

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Action Recognition Charades-Ego EgoVLPv2 mAP 34.1 #2 of 6 Archive leaderboard report
Natural Language Queries Ego4D EgoVLPv2 R@1 IoU=0.3 12.95 #10 of 10 Archive leaderboard report
Natural Language Queries Ego4D EgoVLPv2 R@1 IoU=0.5 7.91 #10 of 10 Archive leaderboard report
Natural Language Queries Ego4D EgoVLPv2 R@5 IoU=0.3 23.80 #10 of 10 Archive leaderboard report
Natural Language Queries Ego4D EgoVLPv2 R@5 IoU=0.5 16.11 #10 of 10 Archive leaderboard report
Question Answering EgoTaskQA EgoVLPv2 Direct 46.26 #1 of 4 Archive leaderboard report
Video Summarization Query-Focused Video Summarization Dataset EgoVLPv2 F1 (avg) 52.08 #1 of 2 Archive leaderboard report

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