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arXiv · 2404.02405

TE-TAD: Towards Full End-to-End Temporal Action Detection via Time-Aligned Coordinate Expression

Ho-Joong Kim·Jung-Ho Hong·Heejo Kong·Seong-Whan Lee
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Abstract

In this paper, we investigate that the normalized coordinate expression is a key factor as reliance on hand-crafted components in query-based detectors for temporal action detection (TAD). Despite significant advancements towards an end-to-end framework in object detection, query-based detectors have been limited in achieving full end-to-end modeling in TAD. To address this issue, we propose \modelname{}, a full end-to-end temporal action detection transformer that integrates time-aligned coordinate expression. We reformulate coordinate expression utilizing actual timeline values, ensuring length-invariant representations from the extremely diverse video duration environment. Furthermore, our proposed adaptive query selection dynamically adjusts the number of queries based on video length, providing a suitable solution for varying video durations compared to a fixed query set. Our approach not only simplifies the TAD process by eliminating the need for hand-crafted components but also significantly improves the performance of query-based detectors. Our TE-TAD outperforms the previous query-based detectors and achieves competitive performance compared to state-of-the-art methods on popular benchmark datasets. Code is available at: https://github.com/Dotori-HJ/TE-TAD

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Ho-Joong Kim, Jung-Ho Hong, Heejo Kong, Seong-Whan Lee. 2024-04-04. TE-TAD: Towards Full End-to-End Temporal Action Detection via Time-Aligned Coordinate Expression. https://arxiv.org/abs/2404.02405

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