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arXiv 2408.16907cs.CV
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Ig3D:在面部表情推理中整合三维人脸表示

Ig3D: Integrating 3D Face Representations in Facial Expression Inference

State University of New York at Buffalo(纽约州立大学布法罗分校)

Lu Dong, Xiao Wang, Srirangaraj Setlur, Venu Govindaraju, Ifeoma Nwogu

AI总结:

本文提出 Ig3D 方法,将基于 FLAME 的三维人脸表示通过中间融合和后期融合架构整合到面部表情推理中,在 AffectNet 和 RAF-DB 上超越现有最优方法,并可作为其他方法的补充以提升情感推理性能。

摘要:

从单张图像重建具有面部几何结构的三维人脸,已经推动了动画、生成模型和虚拟现实领域的重大进展。然而,面部表情推理(FEI)社区尚未充分探索这种利用三维特征表示人脸的能力。因此,本研究旨在考察将此类三维表示整合到 FEI 任务中的影响,具体针对面部表情分类和基于人脸的效价-唤醒度(VA)估计。为实现这一目标,我们首先评估两种三维人脸表示(均基于三维可变形模型 FLAME)在 FEI 任务上的性能。我们进一步探索了两种融合架构,即中间融合和后期融合,用于将三维人脸表示与现有的二维推理框架相结合。为评估我们所提出的架构,我们提取相应的三维表示,并在 AffectNet 和 RAF-DB 数据集上进行了广泛测试。实验结果表明,我们所提出的方法在 AffectNet VA 估计和 RAF-DB 分类任务上优于当前最先进的方法。此外,我们的方法可以作为其他现有方法的补充,在许多情感推理任务中提升性能。

英文摘要:

Reconstructing 3D faces with facial geometry from single images has allowed for major advances in animation, generative models, and virtual reality. However, this ability to represent faces with their 3D features is not as fully explored by the facial expression inference (FEI) community. This study therefore aims to investigate the impacts of integrating such 3D representations into the FEI task, specifically for facial expression classification and face-based valence-arousal (VA) estimation. To accomplish this, we first assess the performance of two 3D face representations (both based on the 3D morphable model, FLAME) for the FEI tasks. We further explore two fusion architectures, intermediate fusion and late fusion, for integrating the 3D face representations with existing 2D inference frameworks. To evaluate our proposed architecture, we extract the corresponding 3D representations and perform extensive tests on the AffectNet and RAF-DB datasets. Our experimental results demonstrate that our proposed method outperforms the state-of-the-art AffectNet VA estimation and RAF-DB classification tasks. Moreover, our method can act as a complement to other existing methods to boost performance in many emotion inference tasks.

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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