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Facial Expression Recognition (FER) systems based on deep learning have achieved impressive performance in recent years. However, these models often exhibit demographic biases, particularly with respect to age, which can compromise their…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 F. Xavier Gaya-Morey , Julia Sanchez-Perez , Cristina Manresa-Yee , Jose M. Buades-Rubio

Compared with the image-based static facial expression recognition (SFER) task, the dynamic facial expression recognition (DFER) task based on video sequences is closer to the natural expression recognition scene. However, DFER is often…

Computer Vision and Pattern Recognition · Computer Science 2022-08-23 Hanting Li , Hongjing Niu , Zhaoqing Zhu , Feng Zhao

Local feature detection is a key ingredient of many image processing and computer vision applications, such as visual odometry and localization. Most existing algorithms focus on feature detection from a sharp image. They would thus have…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Zhenjun Zhao , Yu Zhai , Ben M. Chen , Peidong Liu

We present a Fourier-based machine learning technique that characterizes and detects facial emotions. The main challenging task in the development of machine learning (ML) models for classifying facial emotions is the detection of accurate…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Aishwarya Gouru , Shan Suthaharan

Facial expressions vary from person to person, and the brightness, contrast, and resolution of every random image are different. This is why recognizing facial expressions is very difficult. This article proposes an efficient system for…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Faisal Ghaffar

This paper investigates the feasibility of using the periocular region for expression recognition. Most works have tried to solve this by analyzing the whole face. Periocular is the facial region in the immediate vicinity of the eye. It has…

Computer Vision and Pattern Recognition · Computer Science 2020-10-19 Fernando Alonso-Fernandez , Josef Bigun , Cristofer Englund

Neural Radiance Fields (NeRFs) have shown great potential in novel view synthesis. However, they struggle to render sharp images when the data used for training is affected by motion blur. On the other hand, event cameras excel in dynamic…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Marco Cannici , Davide Scaramuzza

The need for more transparent face recognition (FR), along with other visual-based decision-making systems has recently attracted more attention in research, society, and industry. The reasons why two face images are matched or not matched…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Marco Huber , Naser Damer

Face recognition is a rapidly developing and widely applied aspect of biometric technologies. Its applications are broad, ranging from law enforcement to consumer applications, and industry efficiency and monitoring solutions. The recent…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Andrew Jason Shepley

Person recognition methods that use multiple body regions have shown significant improvements over traditional face-based recognition. One of the primary challenges in full-body person recognition is the extreme variation in pose and view…

Computer Vision and Pattern Recognition · Computer Science 2017-05-30 Vijay Kumar , Anoop Namboodiri , Manohar Paluri , C V Jawahar

With wearing masks becoming a new cultural norm, facial expression recognition (FER) while taking masks into account has become a significant challenge. In this paper, we propose a unified multi-branch vision transformer for facial…

Computer Vision and Pattern Recognition · Computer Science 2024-05-01 Armando Zhu , Keqin Li , Tong Wu , Peng Zhao , Bo Hong

Emotion being a subjective thing, leveraging knowledge and science behind labeled data and extracting the components that constitute it, has been a challenging problem in the industry for many years. With the evolution of deep learning in…

Computer Vision and Pattern Recognition · Computer Science 2017-06-07 Prudhvi Raj Dachapally

Facial expression recognition is a challenging task when neural network is applied to pattern recognition. Most of the current recognition research is based on single source facial data, which generally has the disadvantages of low accuracy…

Computer Vision and Pattern Recognition · Computer Science 2021-09-28 Yi Han , Xubin Wang , Zhengyu Lu

Making computer-generated (CG) images more difficult to detect is an interesting problem in computer graphics and security. While most approaches focus on the image rendering phase, this paper presents a method based on increasing the…

Computer Vision and Pattern Recognition · Computer Science 2018-10-29 Huy H. Nguyen , Ngoc-Dung T. Tieu , Hoang-Quoc Nguyen-Son , Junichi Yamagishi , Isao Echizen

Facial recognition systems have achieved remarkable success by leveraging deep neural networks, advanced loss functions, and large-scale datasets. However, their performance often deteriorates in real-world scenarios involving low-quality…

Computer Vision and Pattern Recognition · Computer Science 2025-10-29 Sadaf Gulshad , Abdullah Aldahlawi

In recent times, there have been increasing accusations on artificial intelligence systems and algorithms of computer vision of possessing implicit biases. Even though these conversations are more prevalent now and systems are improving by…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Sharadha Srinivasan , Madan Musuvathi

Face detection is one of the most relevant applications of image processing and biometric systems. Artificial neural networks (ANN) have been used in the field of image processing and pattern recognition. There is lack of literature surveys…

Computer Vision and Pattern Recognition · Computer Science 2014-04-07 Omaima N. A. AL-Allaf

This study introduces LRDif, a novel diffusion-based framework designed specifically for facial expression recognition (FER) within the context of under-display cameras (UDC). To address the inherent challenges posed by UDC's image…

Computer Vision and Pattern Recognition · Computer Science 2024-02-02 Zhifeng Wang , Kaihao Zhang , Ramesh Sankaranarayana

Much recent research has uncovered and discussed serious concerns of bias in facial analysis technologies, finding performance disparities between groups of people based on perceived gender, skin type, lighting condition, etc. These audits…

The variation of pose, illumination and expression makes face recognition still a challenging problem. As a pre-processing in holistic approaches, faces are usually aligned by eyes. The proposed method tries to perform a pixel alignment…

Computer Vision and Pattern Recognition · Computer Science 2018-08-01 Hoda Mohammadzade , Amirhossein Sayyafan , Benyamin Ghojogh