arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2404.13680cs.CVcs.AI

零样本高保真与姿态可控的角色动画

Zero-shot High-fidelity and Pose-controllable Character Animation

Fudan University(复旦大学);Shanghai Key Lab of Intell. Info. Processing(上海智能信息处理重点实验室);School of CS, Fudan University(复旦大学计算机科学技术学院);Shanghai Collaborative Innovation Center of Intelligent Visual Computing(上海智能视觉计算协同创新中心);OPPO AI Center(OPPO人工智能中心);South China University Of Technology(华南理工大学);Westlake University(西湖大学)

Bingwen Zhu, Fanyi Wang, Tianyi Lu, Peng Liu, Jingwen Su, Jinxiu Liu, Yanhao Zhang, Zuxuan Wu, Guo-Jun Qi, Yu-Gang Jiang

AI总结:

提出零样本I2V框架PoseAnimate,通过姿态感知控制、双一致性注意力和掩码引导解耦三模块及姿态对齐过渡算法,实现高保真、姿态可控且时间连贯的角色动画。

摘要:

图像到视频(I2V)生成旨在从单张图像创建视频序列,这要求高度的时间连贯性和视觉保真度。然而,现有方法存在角色外观不一致和精细细节保留差的问题。此外,它们需要大量视频数据进行训练,计算成本高昂。为解决这些限制,我们提出了PoseAnimate,一种用于角色动画的新型零样本I2V框架。PoseAnimate包含三个关键组件:1)姿态感知控制模块(PACM),将多种姿态信号融入文本嵌入,以保留与角色无关的内容并保持动作的精确对齐;2)双一致性注意力模块(DCAM),增强时间一致性并保留角色身份和复杂的背景细节;3)掩码引导解耦模块(MGDM),通过解耦角色和背景来优化特征感知能力,提升动画保真度。我们还提出了姿态对齐过渡算法(PATA)以确保动作过渡平滑。大量实验结果表明,我们的方法在角色一致性和细节保真度方面优于基于训练的最先进方法,并在生成的动画中始终保持高水平的时间连贯性。

英文摘要:

Image-to-video (I2V) generation aims to create a video sequence from a single image, which requires high temporal coherence and visual fidelity. However, existing approaches suffer from inconsistency of character appearances and poor preservation of fine details. Moreover, they require a large amount of video data for training, which can be computationally demanding. To address these limitations, we propose PoseAnimate, a novel zero-shot I2V framework for character animation. PoseAnimate contains three key components: 1) a Pose-Aware Control Module (PACM) that incorporates diverse pose signals into text embeddings, to preserve character-independent content and maintain precise alignment of actions. 2) a Dual Consistency Attention Module (DCAM) that enhances temporal consistency and retains character identity and intricate background details. 3) a Mask-Guided Decoupling Module (MGDM) that refines distinct feature perception abilities, improving animation fidelity by decoupling the character and background. We also propose a Pose Alignment Transition Algorithm (PATA) to ensure smooth action transition. Extensive experiment results demonstrate that our approach outperforms the state-of-the-art training-based methods in terms of character consistency and detail fidelity. Moreover, it maintains a high level of temporal coherence throughout the generated animations.

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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