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The problem of modeling an animatable 3D human head avatar under light-weight setups is of significant importance but has not been well solved. Existing 3D representations either perform well in the realism of portrait images synthesis or…

Computer Vision and Pattern Recognition · Computer Science 2023-10-02 Xiaochen Zhao , Lizhen Wang , Jingxiang Sun , Hongwen Zhang , Jinli Suo , Yebin Liu

Dynamic facial expression recognition in the wild remains challenging due to data scarcity and long-tail distributions, which hinder models from effectively learning the temporal dynamics of scarce emotions. To address these limitations, we…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Huanzhen Wang , Ziheng Zhou , Jiaqi Song , Li He , Yunshi Lan , Yan Wang , Wenqiang Zhang

The challenge of person re-identification (re-id) is to match individual images of the same person captured by different non-overlapping camera views against significant and unknown cross-view feature distortion. While a large number of…

Computer Vision and Pattern Recognition · Computer Science 2017-03-28 Ying-Cong Chen , Xiatian Zhu , Wei-Shi Zheng , Jian-Huang Lai

The representation used for Facial Expression Recognition (FER) usually contain expression information along with other variations such as identity and illumination. In this paper, we propose a novel Disentangled Expression…

Computer Vision and Pattern Recognition · Computer Science 2019-10-01 Kamran Ali , Charles E. Hughes

Recognition of expressions of emotions and affect from facial images is a well-studied research problem in the fields of affective computing and computer vision with a large number of datasets available containing facial images and…

Computer Vision and Pattern Recognition · Computer Science 2020-08-24 Tian Xu , Jennifer White , Sinan Kalkan , Hatice Gunes

Self-supervised representation learning is heavily dependent on data augmentations to specify the invariances encoded in representations. Previous work has shown that applying diverse data augmentations is crucial to downstream performance,…

Computer Vision and Pattern Recognition · Computer Science 2023-11-08 Philip Andrew Mansfield , Arash Afkanpour , Warren Richard Morningstar , Karan Singhal

The scaling of large language models to encode all the world's knowledge in model parameters is unsustainable and has exacerbated resource barriers. Retrieval-Augmented Generation (RAG) presents a potential solution, yet its application to…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Varun Nagaraj Rao , Siddharth Choudhary , Aditya Deshpande , Ravi Kumar Satzoda , Srikar Appalaraju

In high-end visual effects pipelines, a customized (and expensive) light stage system is (typically) used to scan an actor in order to acquire both geometry and texture for various expressions. Aiming towards democratization, we propose a…

Graphics · Computer Science 2024-01-31 Yilin Zhu , Dalton Omens , Haodi He , Ron Fedkiw

Facial Expression Recognition (FER) is a classification task that points to face variants. Hence, there are certain affinity features between facial expressions, receiving little attention in the FER literature. Convolution padding, despite…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Jiawei Shi , Songhao Zhu , Zhiwei Liang

To be suitable for film-quality animation, rigs for character deformation must fulfill a broad set of requirements. They must be able to create highly stylized deformation, allow a wide variety of controls to permit artistic freedom, and…

Graphics · Computer Science 2020-08-19 Steven L. Song , Weiqi Shi , Michael Reed

Recent advances in neural radiance fields enable novel view synthesis of photo-realistic images in dynamic settings, which can be applied to scenarios with human animation. Commonly used implicit backbones to establish accurate models,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 HyunJun Jung , Nikolas Brasch , Jifei Song , Eduardo Perez-Pellitero , Yiren Zhou , Zhihao Li , Nassir Navab , Benjamin Busam

In recent advances of deep generative models, face reenactment -manipulating and controlling human face, including their head movement-has drawn much attention for its wide range of applicability. Despite its strong expressiveness, it is…

Computer Vision and Pattern Recognition · Computer Science 2022-02-23 Takuya Yashima , Takuya Narihira , Tamaki Kojima

3D Gaussian Splatting (3DGS) provides an efficient method for high-quality scene reconstruction using anisotropic Gaussians. Recently, 3DGS-based methods have significantly improved the rendering quality of human avatars while enabling…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Hongzhe Liao , Chuhua Xian , Hongmin Cai , Haiyang Liu , Fa-Ting Hong

Modeling animatable human avatars from monocular or multi-view videos has been widely studied, with recent approaches leveraging neural radiance fields (NeRFs) or 3D Gaussian Splatting (3DGS) achieving impressive results in novel-view and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-03 Yahui Li , Zhi Zeng , Liming Pang , Guixuan Zhang , Shuwu Zhang

We introduce a novel method for joint expression and audio-guided talking face generation. Recent approaches either struggle to preserve the speaker identity or fail to produce faithful facial expressions. To address these challenges, we…

Computer Vision and Pattern Recognition · Computer Science 2024-09-19 Sai Tanmay Reddy Chakkera , Aggelina Chatziagapi , Dimitris Samaras

Surgical reconstruction of dynamic tissues from endoscopic videos is a crucial technology in robot-assisted surgery. The development of Neural Radiance Fields (NeRFs) has greatly advanced deformable tissue reconstruction, achieving…

Computer Vision and Pattern Recognition · Computer Science 2025-11-03 Wenfeng Huang , Xiangyun Liao , Yinling Qian , Hao Liu , Yongming Yang , Wenjing Jia , Qiong Wang

Facial expression retargeting from humans to virtual characters is a useful technique in computer graphics and animation. Traditional methods use markers or blendshapes to construct a mapping between the human and avatar faces. However,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-13 Juyong Zhang , Keyu Chen , Jianmin Zheng

We introduce Retrieval Augmented Classification (RAC), a generic approach to augmenting standard image classification pipelines with an explicit retrieval module. RAC consists of a standard base image encoder fused with a parallel retrieval…

Computer Vision and Pattern Recognition · Computer Science 2022-02-24 Alexander Long , Wei Yin , Thalaiyasingam Ajanthan , Vu Nguyen , Pulak Purkait , Ravi Garg , Alan Blair , Chunhua Shen , Anton van den Hengel

Recent works reveal that adversarial augmentation benefits the generalization of neural networks (NNs) if used in an appropriate manner. In this paper, we introduce Temporal Adversarial Augmentation (TA), a novel video augmentation…

Computer Vision and Pattern Recognition · Computer Science 2023-05-16 Jinhao Duan , Quanfu Fan , Hao Cheng , Xiaoshuang Shi , Kaidi Xu

Reconstructing animatable and high-quality 3D head avatars from monocular videos, especially with realistic relighting, is a valuable task. However, the limited information from single-view input, combined with the complex head poses and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Dongbin Zhang , Yunfei Liu , Lijian Lin , Ye Zhu , Kangjie Chen , Minghan Qin , Yu Li , Haoqian Wang