arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2107.09504cs.CV
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多模态时间卷积网络在自我中心视频中的行为预测

Multi-Modal Temporal Convolutional Network for Anticipating Actions in Egocentric Videos

University of Bonn(波恩大学)

Olga Zatsarynna, Yazan Abu Farha, Juergen Gall

摘要:

预测人类行为是开发可靠的智能代理(如自动驾驶汽车或机器人助手)需要解决的重要任务。虽然以高精度对未来进行预测的能力对于设计预测方法至关重要,但执行推理的速度也同样重要。准确但不够快的方法将在决策过程中引入高延迟。因此,这将增加底层系统的反应时间。这给自动驾驶等领域带来了问题,在这些领域,反应时间至关重要。在这项工作中,我们提出了一个简单而有效的多模态架构的基础上时间卷积。我们的方法堆叠了时间卷积层的层次结构,并且不依赖于递归层来确保快速预测。我们进一步引入了一种多模态融合机制,该机制捕获RGB、流和对象模态之间的成对交互。在两个大规模的以自我为中心的视频数据集EPIC-Kitchen-55和EPIC-Kitchen-100上的结果表明,我们的方法实现了与最先进的方法相当的性能,同时速度明显更快。

英文摘要:

Anticipating human actions is an important task that needs to be addressed for the development of reliable intelligent agents, such as self-driving cars or robot assistants. While the ability to make future predictions with high accuracy is crucial for designing the anticipation approaches, the speed at which the inference is performed is not less important. Methods that are accurate but not sufficiently fast would introduce a high latency into the decision process. Thus, this will increase the reaction time of the underlying system. This poses a problem for domains such as autonomous driving, where the reaction time is crucial. In this work, we propose a simple and effective multi-modal architecture based on temporal convolutions. Our approach stacks a hierarchy of temporal convolutional layers and does not rely on recurrent layers to ensure a fast prediction. We further introduce a multi-modal fusion mechanism that captures the pairwise interactions between RGB, flow, and object modalities. Results on two large-scale datasets of egocentric videos, EPIC-Kitchens-55 and EPIC-Kitchens-100, show that our approach achieves comparable performance to the state-of-the-art approaches while being significantly faster.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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