ActionVOS: Actions as Prompts for Video Object Segmentation

• URL: http://arxiv.org/abs/2407.07402v1
• Date: Wed, 10 Jul 2024 06:57:04 GMT
• Title: ActionVOS: Actions as Prompts for Video Object Segmentation
• Authors: Liangyang Ouyang, Ruicong Liu, Yifei Huang, Ryosuke Furuta, Yoichi Sato,
• Abstract summary: ActionVOS aims at segmenting only active objects in egocentric videos using human actions as a key language prompt. We develop an action-aware labeling module with an efficient action-guided focal loss. Experiments show that ActionVOS significantly reduces the mis-segmentation of inactive objects.
• Score: 22.922260726461477
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Delving into the realm of egocentric vision, the advancement of referring video object segmentation (RVOS) stands as pivotal in understanding human activities. However, existing RVOS task primarily relies on static attributes such as object names to segment target objects, posing challenges in distinguishing target objects from background objects and in identifying objects undergoing state changes. To address these problems, this work proposes a novel action-aware RVOS setting called ActionVOS, aiming at segmenting only active objects in egocentric videos using human actions as a key language prompt. This is because human actions precisely describe the behavior of humans, thereby helping to identify the objects truly involved in the interaction and to understand possible state changes. We also build a method tailored to work under this specific setting. Specifically, we develop an action-aware labeling module with an efficient action-guided focal loss. Such designs enable ActionVOS model to prioritize active objects with existing readily-available annotations. Experimental results on VISOR dataset reveal that ActionVOS significantly reduces the mis-segmentation of inactive objects, confirming that actions help the ActionVOS model understand objects' involvement. Further evaluations on VOST and VSCOS datasets show that the novel ActionVOS setting enhances segmentation performance when encountering challenging circumstances involving object state changes. We will make our implementation available at https://github.com/ut-vision/ActionVOS.

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