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Home / Proceedings / Proceedings of the AAAI Conference on Artificial Intelligence, 35 / No. 3: AAAI-21 Technical Tracks 3

BSN++: Complementary Boundary Regressor with Scale-Balanced Relation Modeling for Temporal Action Proposal Generation

February 1, 2023

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Authors

Haisheng Su

SenseTime Research


Weihao Gan

SenseTime Research


Wei Wu

SenseTime Research


Yu Qiao

Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shanghai AI Laboratory, Shanghai, China


Junjie Yan

SenseTime Research


DOI:

10.1609/aaai.v35i3.16363


Abstract:

Generating human action proposals in untrimmed videos is an important yet challenging task with wide applications. Current methods often suffer from the noisy boundary locations and the inferior quality of confidence scores used for proposal retrieving. In this paper, we present BSN++, a new framework which exploits complementary boundary regressor and relation modeling for temporal proposal generation. First, we propose a novel boundary regressor based on the complementary characteristics of both starting and ending boundary classifiers. Specifically, we utilize the U-shaped architecture with nested skip connections to capture rich contexts and introduce bi-directional boundary matching mechanism to improve boundary precision. Second, to account for the proposal-proposal relations ignored in previous methods, we devise a proposal relation block to which includes two self-attention modules from the aspects of position and channel. Furthermore, we find that there inevitably exists data imbalanced problems in the positive/negative proposals and temporal durations, which harm the model performance on tail distributions. To relieve this issue, we introduce the scale-balanced re-sampling strategy. Extensive experiments are conducted on two popular benchmarks: ActivityNet-1.3 and THUMOS14, which demonstrate that BSN++ achieves the state-of-the-art performance. Not surprisingly, the proposed BSN++ ranked 1st place in the CVPR19 - ActivityNet challenge leaderboard on temporal action localization task.

Topics: AAAI

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HOW TO CITE:

Haisheng Su||Weihao Gan||Wei Wu||Yu Qiao||Junjie Yan BSN++: Complementary Boundary Regressor with Scale-Balanced Relation Modeling for Temporal Action Proposal Generation Proceedings of the AAAI Conference on Artificial Intelligence (2021) 2602-2610.

Haisheng Su||Weihao Gan||Wei Wu||Yu Qiao||Junjie Yan BSN++: Complementary Boundary Regressor with Scale-Balanced Relation Modeling for Temporal Action Proposal Generation AAAI 2021, 2602-2610.

Haisheng Su||Weihao Gan||Wei Wu||Yu Qiao||Junjie Yan (2021). BSN++: Complementary Boundary Regressor with Scale-Balanced Relation Modeling for Temporal Action Proposal Generation. Proceedings of the AAAI Conference on Artificial Intelligence, 2602-2610.

Haisheng Su||Weihao Gan||Wei Wu||Yu Qiao||Junjie Yan. BSN++: Complementary Boundary Regressor with Scale-Balanced Relation Modeling for Temporal Action Proposal Generation. Proceedings of the AAAI Conference on Artificial Intelligence 2021 p.2602-2610.

Haisheng Su||Weihao Gan||Wei Wu||Yu Qiao||Junjie Yan. 2021. BSN++: Complementary Boundary Regressor with Scale-Balanced Relation Modeling for Temporal Action Proposal Generation. "Proceedings of the AAAI Conference on Artificial Intelligence". 2602-2610.

Haisheng Su||Weihao Gan||Wei Wu||Yu Qiao||Junjie Yan. (2021) "BSN++: Complementary Boundary Regressor with Scale-Balanced Relation Modeling for Temporal Action Proposal Generation", Proceedings of the AAAI Conference on Artificial Intelligence, p.2602-2610

Haisheng Su||Weihao Gan||Wei Wu||Yu Qiao||Junjie Yan, "BSN++: Complementary Boundary Regressor with Scale-Balanced Relation Modeling for Temporal Action Proposal Generation", AAAI, p.2602-2610, 2021.

Haisheng Su||Weihao Gan||Wei Wu||Yu Qiao||Junjie Yan. "BSN++: Complementary Boundary Regressor with Scale-Balanced Relation Modeling for Temporal Action Proposal Generation". Proceedings of the AAAI Conference on Artificial Intelligence, 2021, p.2602-2610.

Haisheng Su||Weihao Gan||Wei Wu||Yu Qiao||Junjie Yan. "BSN++: Complementary Boundary Regressor with Scale-Balanced Relation Modeling for Temporal Action Proposal Generation". Proceedings of the AAAI Conference on Artificial Intelligence, (2021): 2602-2610.

Haisheng Su||Weihao Gan||Wei Wu||Yu Qiao||Junjie Yan. BSN++: Complementary Boundary Regressor with Scale-Balanced Relation Modeling for Temporal Action Proposal Generation. AAAI[Internet]. 2021[cited 2023]; 2602-2610.


ISSN: 2374-3468


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