Temporal Convolutional Networks: A Unified Approach to Action Segmentation
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Abstract (arXiv)
The dominant paradigm for video-based action segmentation is composed of two steps: first, for each frame, compute low-level features using Dense Trajectories or a Convolutional Neural Network that encode spatiotemporal information locally, and second, input these features into a classifier that captures high-level temporal relationships, such as a Recurrent Neural Network (RNN). While often effective, this decoupling requires specifying two separate models, each with their own complexities, and prevents capturing more nuanced long-range spatiotemporal relationships. We propose a unified approach, as demonstrated by our Temporal Convolutional Network (TCN), that hierarchically captures relationships at low-, intermediate-, and high-level time-scales. Our model achieves superior or competitive performance using video or sensor data on three public action segmentation datasets and can be trained in a fraction of the time it takes to train an RNN.
Key facts. Cited by 199 papers in the map (data through 14 Oct 2026). First posted on arXiv 29 Aug 2016.
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Citing papers per year: 2021: 23; 2022: 37; 2023: 36; 2024: 32; 2025: 46; 2026: 25.
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