Actor and Action Video Segmentation from a Sentence
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Abstract (arXiv)
This paper strives for pixel-level segmentation of actors and their actions in video content. Different from existing works, which all learn to segment from a fixed vocabulary of actor and action pairs, we infer the segmentation from a natural language input sentence. This allows to distinguish between fine-grained actors in the same super-category, identify actor and action instances, and segment pairs that are outside of the actor and action vocabulary. We propose a fully-convolutional model for pixel-level actor and action segmentation using an encoder-decoder architecture optimized for video. To show the potential of actor and action video segmentation from a sentence, we extend two popular actor and action datasets with more than 7,500 natural language descriptions. Experiments demonstrate the quality of the sentence-guided segmentations, the generalization ability of our model, and its advantage for traditional actor and action segmentation compared to the state-of-the-art.
Key facts. Cited by 106 papers in the map (data through 14 Oct 2026). First posted on arXiv 20 Mar 2018.
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Citing papers per year: 2021: 13; 2022: 7; 2023: 17; 2024: 26; 2025: 24; 2026: 19.
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- 2026ReflexTrack: A Feedback-Driven Agent for Training-Free Referring Video Object Segmentation27 Jul 2026
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- 2026Efficient Spatio-Temporal Grounding with Multimodal Large Models via Second-Level Tracking and RL Verification27 Jun 2026
- 2026Event-Aware Instructed Assistant for Referring Video Segmentation25 Jun 2026
- 2026Boosting Text-Driven Video Segmentation via Geometry-Aware Distillation23 Jun 2026
- 2026AVTrack: Audio-Visual Tracking in Human-centric Complex Scenes1 Jun 2026
- 2026Cross-Modal-Domain Generalization Through Semantically Aligned Discrete Representations12 May 2026
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