EmoDiffusion: Enhancing Emotional 3D Facial Animation with Latent Diffusion Models

• URL: http://arxiv.org/abs/2503.11028v1
• Date: Fri, 14 Mar 2025 02:54:22 GMT
• Title: EmoDiffusion: Enhancing Emotional 3D Facial Animation with Latent Diffusion Models
• Authors: Yixuan Zhang, Qing Chang, Yuxi Wang, Guang Chen, Zhaoxiang Zhang, Junran Peng,
• Abstract summary: EmoDiffusion is a novel approach that disentangles different emotions in speech to generate rich 3D emotional facial expressions.<n>We capture facial expressions under the guidance of animation experts using LiveLinkFace on an iPhone.
• Score: 66.67979602235015
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Speech-driven 3D facial animation seeks to produce lifelike facial expressions that are synchronized with the speech content and its emotional nuances, finding applications in various multimedia fields. However, previous methods often overlook emotional facial expressions or fail to disentangle them effectively from the speech content. To address these challenges, we present EmoDiffusion, a novel approach that disentangles different emotions in speech to generate rich 3D emotional facial expressions. Specifically, our method employs two Variational Autoencoders (VAEs) to separately generate the upper face region and mouth region, thereby learning a more refined representation of the facial sequence. Unlike traditional methods that use diffusion models to connect facial expression sequences with audio inputs, we perform the diffusion process in the latent space. Furthermore, we introduce an Emotion Adapter to evaluate upper face movements accurately. Given the paucity of 3D emotional talking face data in the animation industry, we capture facial expressions under the guidance of animation experts using LiveLinkFace on an iPhone. This effort results in the creation of an innovative 3D blendshape emotional talking face dataset (3D-BEF) used to train our network. Extensive experiments and perceptual evaluations validate the effectiveness of our approach, confirming its superiority in generating realistic and emotionally rich facial animations.

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