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- W3203380776 abstract "Research on group activity recognition mostly leans on the standard two-stream approach (RGB and Optical Flow) as their input features. Few have explored explicit pose information, with none using it directly to reason about the persons interactions. In this paper, we leverage the skeleton information to learn the interactions between the individuals straight from it. With our proposed method GIRN, multiple relationship types are inferred from independent modules, that describe the relations between the body joints pair-by-pair. Additionally to the joints relations, we also experiment with the previously unexplored relationship between individuals and relevant objects (e.g. volleyball). The individuals distinct relations are then merged through an attention mechanism, that gives more importance to those individuals more relevant for distinguishing the group activity. We evaluate our method in the Volleyball dataset, obtaining competitive results to the state-of-the-art. Our experiments demonstrate the potential of skeleton-based approaches for modeling multi-person interactions." @default.
- W3203380776 created "2021-10-11" @default.
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- W3203380776 date "2022-02-01" @default.
- W3203380776 modified "2023-09-30" @default.
- W3203380776 title "Skeleton-based relational reasoning for group activity analysis" @default.
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- W3203380776 doi "https://doi.org/10.1016/j.patcog.2021.108360" @default.
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