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Customizable 3D avatar-based facial expression stimuli may improve user engagement in behavioral biomarker discovery and therapeutic intervention for autism, Alzheimer's disease, facial palsy, and more. However, there is a lack of…

The quantified measurement of facial expressiveness is crucial to analyze human affective behavior at scale. Unfortunately, methods for expressiveness quantification at the video frame-level are largely unexplored, unlike the study of…

Computer Vision and Pattern Recognition · Computer Science 2021-10-08 Md Taufeeq Uddin , Shaun Canavan

The automatic recognition of facial expressions has been an active research topic since the early nineties. There have been several advances in the past few years in terms of face detection and tracking, feature extraction mechanisms and…

Computer Vision and Pattern Recognition · Computer Science 2012-04-02 Vinay Bettadapura

Generative models have surged in popularity recently due to their ability to produce high-quality images and video. However, steering these models to produce images with specific attributes and precise control remains challenging. Humans,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Tuomas Varanka , Huai-Qian Khor , Yante Li , Mengting Wei , Hanwei Kung , Nicu Sebe , Guoying Zhao

Facial action units (AUs), as defined in the Facial Action Coding System (FACS), have received significant research interest owing to their diverse range of applications in facial state analysis. Current mainstream FAU recognition models…

Computer Vision and Pattern Recognition · Computer Science 2024-08-02 Xuri Ge , Junchen Fu , Fuhai Chen , Shan An , Nicu Sebe , Joemon M. Jose

The analysis of expression and facial Action Units (AUs) detection are very important tasks in fields of computer vision and Human Computer Interaction (HCI) due to the wide range of applications in human life. Many works has been done…

Computer Vision and Pattern Recognition · Computer Science 2015-11-09 Mohammadamin Abbasnejad , Mohammad Ali Masnadi-Shirazi

Facial action units (AUs) detection is fundamental to facial expression analysis. As AU occurs only in a small area of the face, region-based learning has been widely recognized useful for AU detection. Most region-based studies focus on a…

Computer Vision and Pattern Recognition · Computer Science 2020-02-12 Yao Xia

We present techniques for improving performance driven facial animation, emotion recognition, and facial key-point or landmark prediction using learned identity invariant representations. Established approaches to these problems can work…

Computer Vision and Pattern Recognition · Computer Science 2016-05-24 David Rim , Sina Honari , Md Kamrul Hasan , Chris Pal

Facial Action Unit (AU) detection is a crucial task in affective computing and social robotics as it helps to identify emotions expressed through facial expressions. Anatomically, there are innumerable correlations between AUs, which…

Computer Vision and Pattern Recognition · Computer Science 2023-08-16 Xin Liu , Kaishen Yuan , Xuesong Niu , Jingang Shi , Zitong Yu , Huanjing Yue , Jingyu Yang

Facial Action Units (AUs) are of great significance in the realm of affective computing. In this paper, we propose AU-LLaVA, the first unified AU recognition framework based on the Large Language Model (LLM). AU-LLaVA consists of a visual…

Computer Vision and Pattern Recognition · Computer Science 2024-09-16 Guohong Hu , Xing Lan , Hanyu Jiang , Jiayi Lyu , Jian Xue

Nearly all existing Facial Action Coding System-based datasets that include facial action unit (AU) intensity information annotate the intensity values hierarchically using A--E levels. However, facial expressions change continuously and…

Computer Vision and Pattern Recognition · Computer Science 2023-01-31 Wei Gan , Jian Xue , Ke Lu , Yanfu Yan , Pengcheng Gao , Jiayi Lyu

Facial expression analysis based on machine learning requires large number of well-annotated data to reflect different changes in facial motion. Publicly available datasets truly help to accelerate research in this area by providing a…

Machine Learning · Computer Science 2023-01-31 Yanfu Yan , Ke Lu , Jian Xue , Pengcheng Gao , Jiayi Lyu

Facial Action Coding System is an approach for modeling the complexity of human emotional expression. Automatic action unit (AU) detection is a crucial research area in human-computer interaction. This paper describes our submission to the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Duy Le Hoai , Eunchae Lim , Eunbin Choi , Sieun Kim , Sudarshan Pant , Guee-Sang Lee , Soo-Huyng Kim , Hyung-Jeong Yang

Facial expression analysis is central to understanding human behavior, yet existing coding systems such as the Facial Action Coding System (FACS) are constrained by limited coverage and costly manual annotation. In this work, we introduce…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Minh Tran , Maksim Siniukov , Zhangyu Jin , Mohammad Soleymani

Facial Expression Classification is an interesting research problem in recent years. There are a lot of methods to solve this problem. In this research, we propose a novel approach using Canny, Principal Component Analysis (PCA) and…

Computer Vision and Pattern Recognition · Computer Science 2011-11-18 Le Hoang Thai , Nguyen Do Thai Nguyen , Tran Son Hai

Recognizing human emotion/expressions automatically is quite an expected ability for intelligent robotics, as it can promote better communication and cooperation with humans. Current deep-learning-based algorithms may achieve impressive…

Computer Vision and Pattern Recognition · Computer Science 2021-04-05 Tao Pu , Tianshui Chen , Yuan Xie , Hefeng Wu , Liang Lin

Facial behavior constitutes the primary medium of human nonverbal communication. Existing synthesis methods predominantly follow two paradigms: coarse emotion category labels or one-hot Action Unit (AU) vectors from the Facial Action Coding…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Jiahe Wang , Cong Liang , Xuandong Huang , Yuxin Wang , Xin Yun , Yi Wu , Yanan Chang , Shangfei Wang

The Facial Action Coding System (FACS) encodes the action units (AUs) in facial images, which has attracted extensive research attention due to its wide use in facial expression analysis. Many methods that perform well on automatic facial…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Xuri Ge , Joemon M. Jose , Songpei Xu , Xiao Liu , Hu Han

Detecting facial action units (AU) is one of the fundamental steps in automatic recognition of facial expression of emotions and cognitive states. Though there have been a variety of approaches proposed for this task, most of these models…

Computer Vision and Pattern Recognition · Computer Science 2019-11-28 Mihee Lee , Ognjen Rudovic , Vladimir Pavlovic , Maja Pantic

As one of the most important affective signals, facial affect analysis (FAA) is essential for developing human-computer interaction systems. Early methods focus on extracting appearance and geometry features associated with human affects…

Computer Vision and Pattern Recognition · Computer Science 2022-02-14 Yang Liu , Xingming Zhang , Yante Li , Jinzhao Zhou , Xin Li , Guoying Zhao