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In this paper, we propose an approach for Facial Expressions Recognition (FER) based on a deep multi-facial patches aggregation network. Deep features are learned from facial patches using deep sub-networks and aggregated within one deep…

Computer Vision and Pattern Recognition · Computer Science 2020-03-17 Ahmed Rachid Hazourli , Amine Djeghri , Hanan Salam , Alice Othmani

We introduce a novel approach to single-view face relighting in the wild, addressing challenges such as global illumination and cast shadows. A common scheme in recent methods involves intrinsically decomposing an input image into 3D shape,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Puntawat Ponglertnapakorn , Nontawat Tritrong , Supasorn Suwajanakorn

Face images captured in real-world low light suffer multiple degradations-low illumination, blur, noise, and low visibility, etc. Existing cascaded solutions often suffer from severe error accumulation, while generic joint models lack…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Yilin Ni , Wenjie Li , Zhengxue Wang , Juncheng Li , Guangwei Gao , Jian Yang

LiDAR and camera are two important sensors for 3D object detection in autonomous driving. Despite the increasing popularity of sensor fusion in this field, the robustness against inferior image conditions, e.g., bad illumination and sensor…

Computer Vision and Pattern Recognition · Computer Science 2022-03-23 Xuyang Bai , Zeyu Hu , Xinge Zhu , Qingqiu Huang , Yilun Chen , Hongbo Fu , Chiew-Lan Tai

The rising prevalence of vision-threatening retinal diseases poses a significant burden on the global healthcare systems. Deep learning (DL) offers a promising solution for automatic disease screening but demands substantial data.…

Image and Video Processing · Electrical Eng. & Systems 2024-11-18 Ruoyu Chen , Weiyi Zhang , Bowen Liu , Xiaolan Chen , Pusheng Xu , Shunming Liu , Mingguang He , Danli Shi

Facial expression recognition has been an active research area over the past few decades, and it is still challenging due to the high intra-class variation. Traditional approaches for this problem rely on hand-crafted features such as SIFT,…

Computer Vision and Pattern Recognition · Computer Science 2019-02-05 Shervin Minaee , Amirali Abdolrashidi

Facial Expression Recognition (FER) in the wild is still challenging due to uncontrolled variations in pose, occlusion, and illumination. Most existing attention-based methods primarily rely on visual appearance cues, suffering from…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Jiaxin Wang , Muwei Jian , Hui Yu , Junyu Dong , Yifan Xia

Diffusion models (DMs) excel in photo-realistic image synthesis, but their adaptation to LiDAR scene generation poses a substantial hurdle. This is primarily because DMs operating in the point space struggle to preserve the curve-like…

Computer Vision and Pattern Recognition · Computer Science 2024-04-22 Haoxi Ran , Vitor Guizilini , Yue Wang

Although there has been much progress in the area of facial expression recognition (FER), most existing methods suffer when presented with images that have been captured from viewing angles that are non-frontal and substantially different…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Shuvendu Roy , Ali Etemad

Current facial expression recognition (FER) models are often designed in a supervised learning manner and thus are constrained by the lack of large-scale facial expression images with high-quality annotations. Consequently, these models…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Zengqun Zhao , Yu Cao , Shaogang Gong , Ioannis Patras

Facial expression recognition (FER) is an essential task for understanding human behaviors. As one of the most informative behaviors of humans, facial expressions are often compound and variable, which is manifested by the fact that…

Computer Vision and Pattern Recognition · Computer Science 2023-03-02 Hanting Li , Hongjing Niu , Zhaoqing Zhu , Feng Zhao

Low-dose computed tomography (CT) denoising is crucial for reduced radiation exposure while ensuring diagnostically acceptable image quality. Despite significant advancements driven by deep learning (DL) in recent years, existing DL-based…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Zhihao Chen , Qi Gao , Zilong Li , Junping Zhang , Yi Zhang , Jun Zhao , Hongming Shan

Facial Expression Recognition is a vital research topic in most fields ranging from artificial intelligence and gaming to Human-Computer Interaction (HCI) and Psychology. This paper proposes a hybrid model for Facial Expression recognition,…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Ozioma Collins Oguine , Kanyifeechukwu Jane Oguine , Hashim Ibrahim Bisallah , Daniel Ofuani

License plate image restoration is important not only as a preprocessing step for license plate recognition but also for enhancing evidential value, improving visual clarity, and enabling broader reuse of license plate images. We propose a…

Computer Vision and Pattern Recognition · Computer Science 2025-12-22 Kihyun Na , Gyuhwan Park , Injung Kim

Facial expressions are the most common universal forms of body language. In the past few years, automatic facial expression recognition (FER) has been an active field of research. However, it is still a challenging task due to different…

Computer Vision and Pattern Recognition · Computer Science 2021-08-23 Rauf Momin , Ali Shan Momin , Khalid Rasheed , Muhammad Saqib

Vision transformer (ViT) has been widely applied in many areas due to its self-attention mechanism that help obtain the global receptive field since the first layer. It even achieves surprising performance exceeding CNN in some vision…

Computer Vision and Pattern Recognition · Computer Science 2021-09-28 Hanting Li , Mingzhe Sui , Zhaoqing Zhu , Feng Zhao

Recent advances in diffusion models have enabled the creation of deceptively real images, posing significant security risks when misused. In this study, we empirically show that different timesteps of DDIM inversion reveal varying subtle…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Yixin Wu , Feiran Zhang , Tianyuan Shi , Ruicheng Yin , Zhenghua Wang , Zhenliang Gan , Xiaohua Wang , Changze Lv , Xiaoqing Zheng , Xuanjing Huang

Recently, facial expression recognition (FER) in the wild has gained a lot of researchers' attention because it is a valuable topic to enable the FER techniques to move from the laboratory to the real applications. In this paper, we focus…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Xingxun Jiang , Yuan Zong , Wenming Zheng , Chuangao Tang , Wanchuang Xia , Cheng Lu , Jiateng Liu

Adverse Weather Image Restoration (AWIR) is a highly challenging task due to the unpredictable and dynamic nature of weather-related degradations. Traditional task-specific methods often fail to generalize to unseen or complex degradation…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Wenxuan Fang , Jili Fan , Chao Wang , Xiantao Hu , Jiangwei Weng , Ying Tai , Jian Yang , Jun Li

The rapid advancement of diffusion-based generative models has made face forgery detection a critical challenge in digital forensics. Current detection methods face two fundamental limitations: poor cross-domain generalization when…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Xuecen Zhang , Vipin Chaudhary