SMILE: Infusing Spatial and Motion Semantics in Masked Video Learning

• URL: http://arxiv.org/abs/2504.00527v1
• Date: Tue, 01 Apr 2025 08:20:55 GMT
• Title: SMILE: Infusing Spatial and Motion Semantics in Masked Video Learning
• Authors: Fida Mohammad Thoker, Letian Jiang, Chen Zhao, Bernard Ghanem,
• Abstract summary: Masked video modeling is an effective paradigm for video self-supervised learning (SSL)<n>This paper introduces a novel SSL approach for video representation learning, dubbed as SMILE, by infusing both spatial and motion semantics.<n>We establish a new self-supervised video learning paradigm capable of learning strong video representations without requiring any natural video data.
• Score: 50.98341607245458
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Masked video modeling, such as VideoMAE, is an effective paradigm for video self-supervised learning (SSL). However, they are primarily based on reconstructing pixel-level details on natural videos which have substantial temporal redundancy, limiting their capability for semantic representation and sufficient encoding of motion dynamics. To address these issues, this paper introduces a novel SSL approach for video representation learning, dubbed as SMILE, by infusing both spatial and motion semantics. In SMILE, we leverage image-language pretrained models, such as CLIP, to guide the learning process with their high-level spatial semantics. We enhance the representation of motion by introducing synthetic motion patterns in the training data, allowing the model to capture more complex and dynamic content. Furthermore, using SMILE, we establish a new self-supervised video learning paradigm capable of learning strong video representations without requiring any natural video data. We have carried out extensive experiments on 7 datasets with various downstream scenarios. SMILE surpasses current state-of-the-art SSL methods, showcasing its effectiveness in learning more discriminative and generalizable video representations. Code is available: https://github.com/fmthoker/SMILE

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