Journal
COMPUTER GRAPHICS FORUM
Volume 41, Issue 1, Pages 122-157Publisher
WILEY
DOI: 10.1111/cgf.14426
Keywords
animation systems; human simulation; motion capture; physically based animation
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Funding
- European Commission under European Horizon 2020 Programme [951911 -AI4Media]
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This article provides a comprehensive survey on the state-of-the-art approaches in skeleton-based human character animation using deep learning and deep reinforcement learning. It covers motion data representations, common datasets, as well as methods to enhance deep models for learning spatial and temporal patterns in motion data. The latest methods are divided into motion synthesis, character control, and motion editing categories, with a discussion on limitations and future research directions.
Human character animation is often critical in entertainment content production, including video games, virtual reality or fiction films. To this end, deep neural networks drive most recent advances through deep learning (DL) and deep reinforcement learning (DRL). In this article, we propose a comprehensive survey on the state-of-the-art approaches based on either DL or DRL in skeleton-based human character animation. First, we introduce motion data representations, most common human motion datasets and how basic deep models can be enhanced to foster learning of spatial and temporal patterns in motion data. Second, we cover state-of-the-art approaches divided into three large families of applications in human animation pipelines: motion synthesis, character control and motion editing. Finally, we discuss the limitations of the current state-of-the-art methods based on DL and/or DRL in skeletal human character animation and possible directions of future research to alleviate current limitations and meet animators' needs.
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