JoyVASA: Portrait and Animal Image Animation with Diffusion-Based Audio-Driven Facial Dynamics and Head Motion Generation

• URL: http://arxiv.org/abs/2411.09209v3
• Date: Wed, 20 Nov 2024 02:56:02 GMT
• Title: JoyVASA: Portrait and Animal Image Animation with Diffusion-Based Audio-Driven Facial Dynamics and Head Motion Generation
• Authors: Xuyang Cao, Guoxin Wang, Sheng Shi, Jun Zhao, Yang Yao, Jintao Fei, Minyu Gao,
• Abstract summary: JoyVASA is a diffusion-based method for generating facial dynamics and head motion in audio-driven facial animation. We introduce a decoupled facial representation framework that separates dynamic facial expressions from static 3D facial representations. In the second stage, a diffusion transformer is trained to generate motion sequences directly from audio cues, independent of character identity.
• Score: 10.003794924759765
• License:
• Abstract: Audio-driven portrait animation has made significant advances with diffusion-based models, improving video quality and lipsync accuracy. However, the increasing complexity of these models has led to inefficiencies in training and inference, as well as constraints on video length and inter-frame continuity. In this paper, we propose JoyVASA, a diffusion-based method for generating facial dynamics and head motion in audio-driven facial animation. Specifically, in the first stage, we introduce a decoupled facial representation framework that separates dynamic facial expressions from static 3D facial representations. This decoupling allows the system to generate longer videos by combining any static 3D facial representation with dynamic motion sequences. Then, in the second stage, a diffusion transformer is trained to generate motion sequences directly from audio cues, independent of character identity. Finally, a generator trained in the first stage uses the 3D facial representation and the generated motion sequences as inputs to render high-quality animations. With the decoupled facial representation and the identity-independent motion generation process, JoyVASA extends beyond human portraits to animate animal faces seamlessly. The model is trained on a hybrid dataset of private Chinese and public English data, enabling multilingual support. Experimental results validate the effectiveness of our approach. Future work will focus on improving real-time performance and refining expression control, further expanding the applications in portrait animation. The code is available at: https://github.com/jdh-algo/JoyVASA.

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