Papers › Action recognition with spatial-temporal discriminative filter banks
Action recognition with spatial-temporal discriminative filter banks
Brais Martinez, Davide Modolo, Yuanjun Xiong, Joseph Tighe
Action recognition has seen a dramatic performance improvement in the last few years. Most of the current state-of-the-art literature either aims at improving performance through changes to the backbone CNN network, or they explore different trade-offs between computational efficiency and performance, again through altering the backbone network. However, almost all of these works maintain the same last layers of the network, which simply consist of a global average pooling followed by a fully connected layer. In this work we focus on how to improve the representation capacity of the network, but rather than altering the backbone, we focus on improving the last layers of the network, where changes have low impact in terms of computational cost. In particular, we show that current architectures have poor sensitivity to finer details and we exploit recent advances in the fine-grained recognition literature to improve our model in this aspect. With the proposed approach, we obtain state-of-the-art performance on Kinetics-400 and Something-Something-V1, the two major large-scale action recognition benchmarks.
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Tasks
Results from the paper archive 2025-07-28
| Task | Dataset | Model | Metric | Value | Rank at snapshot | Leaderboard | Report |
|---|---|---|---|---|---|---|---|
| Action Classification | Kinetics-400 | GB + DF + LB (ResNet 152, ImageNet pretrained) | Acc@1 | 78.8 | #124 of 207 | Archive leaderboard | report |
| Action Recognition | Something-Something V1 | GB + DF + LB (ResNet152, ImageNet pretrained) | Top 1 Accuracy | 53.4 | #37 of 74 | Archive leaderboard | report |
Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.
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