Look for the Change: Learning Object States and State-Modifying Actions from Untrimmed Web Videos

• URL: http://arxiv.org/abs/2203.11637v1
• Date: Tue, 22 Mar 2022 11:45:10 GMT
• Title: Look for the Change: Learning Object States and State-Modifying Actions from Untrimmed Web Videos
• Authors: Tom\'a\v{s} Sou\v{c}ek, Jean-Baptiste Alayrac, Antoine Miech, Ivan Laptev, Josef Sivic
• Abstract summary: Human actions often induce changes of object states such as "cutting an apple" or "pouring coffee" We develop a self-supervised model for jointly learning state-modifying actions together with the corresponding object states. To cope with noisy uncurated training data, our model incorporates a noise adaptive weighting module supervised by a small number of annotated still images.
• Score: 55.60442251060871
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Human actions often induce changes of object states such as "cutting an apple", "cleaning shoes" or "pouring coffee". In this paper, we seek to temporally localize object states (e.g. "empty" and "full" cup) together with the corresponding state-modifying actions ("pouring coffee") in long uncurated videos with minimal supervision. The contributions of this work are threefold. First, we develop a self-supervised model for jointly learning state-modifying actions together with the corresponding object states from an uncurated set of videos from the Internet. The model is self-supervised by the causal ordering signal, i.e. initial object state $\rightarrow$ manipulating action $\rightarrow$ end state. Second, to cope with noisy uncurated training data, our model incorporates a noise adaptive weighting module supervised by a small number of annotated still images, that allows to efficiently filter out irrelevant videos during training. Third, we collect a new dataset with more than 2600 hours of video and 34 thousand changes of object states, and manually annotate a part of this data to validate our approach. Our results demonstrate substantial improvements over prior work in both action and object state-recognition in video.

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