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- W2696706365 abstract "Recent works have shown that hierarchical models lead to significant improvement in human activity recognition, which can not only enhance descriptive capability, but also improve discriminative power. However, most existing methods exploit just one of the two advantages. In this paper, a new hierarchical spatio-temporal model (HSTM) is proposed to integrate feature learning into two-layer hierarchical classification model simultaneously. On the one hand, the two-layer model has sufficient descriptive capability. The bottom layer aims at capturing spatial relations in each frame and learning high-level representations, and the top layer utilizes these learned features to characterize temporal relations in the whole video sequence. On the other hand, the hierarchical model has strong discriminative power. Both spatial similarity and temporal similarity of activities are measured. Experimental results show that the HSTM can successfully recognize human activities with higher accuracies on one-person actions (KTH and UCF), human-human interactions (CASIA), and human-object interactional activities (Gupta)." @default.
- W2696706365 created "2017-06-30" @default.
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- W2696706365 date "2017-03-01" @default.
- W2696706365 modified "2023-09-25" @default.
- W2696706365 title "Learning a hierarchical spatio-temporal model for human activity recognition" @default.
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- W2696706365 doi "https://doi.org/10.1109/icassp.2017.7952428" @default.
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