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Defect detection is a critical research area in artificial intelligence. Recently, synthetic data-based self-supervised learning has shown great potential on this task. Although many sophisticated synthesizing strategies exist, little…

Computer Vision and Pattern Recognition · Computer Science 2023-10-12 Yuxuan Cai , Dingkang Liang , Dongliang Luo , Xinwei He , Xin Yang , Xiang Bai

This paper proposes a supervised learning approach to jointly perform facial Action Unit (AU) localisation and intensity estimation. Contrary to previous works that try to learn an unsupervised representation of the Action Unit regions, we…

Computer Vision and Pattern Recognition · Computer Science 2018-07-23 Enrique Sanchez-Lozano , Georgios Tzimiropoulos , Michel Valstar

Recognising continuous emotions and action unit (AU) intensities from face videos requires a spatial and temporal understanding of expression dynamics. Existing works primarily rely on 2D face appearances to extract such dynamics. This work…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Mani Kumar Tellamekala , Ömer Sümer , Björn W. Schuller , Elisabeth André , Timo Giesbrecht , Michel Valstar

In recent times, the field of unsupervised representation learning (URL) for time series data has garnered significant interest due to its remarkable adaptability across diverse downstream applications. Unsupervised learning goals differ…

Machine Learning · Computer Science 2025-05-12 Chen Liang , Donghua Yang , Zhiyu Liang , Hongzhi Wang , Zheng Liang , Xiyang Zhang , Jianfeng Huang

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

Face Anti-Spoofing (FAS) is crucial for securing face recognition systems against presentation attacks. With advancements in sensor manufacture and multi-modal learning techniques, many multi-modal FAS approaches have emerged. However, they…

Computer Vision and Pattern Recognition · Computer Science 2024-03-06 Xun Lin , Shuai Wang , Rizhao Cai , Yizhong Liu , Ying Fu , Zitong Yu , Wenzhong Tang , Alex Kot

Active learning enhances annotation efficiency by selecting the most revealing samples for labeling, thereby reducing reliance on extensive human input. Previous methods in semantic segmentation have centered on individual pixels or small…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Jinchao Ge , Zeyu Zhang , Minh Hieu Phan , Bowen Zhang , Akide Liu , Yang Zhao , Shuwen Zhao

Aspect-Based Sentiment Analysis (ABSA) aims to provide fine-grained aspect-level sentiment information. There are many ABSA tasks, and the current dominant paradigm is to train task-specific models for each task. However, application…

Computation and Language · Computer Science 2022-11-22 Zengzhi Wang , Rui Xia , Jianfei Yu

Facial behavior analysis is a broad topic with various categories such as facial emotion recognition, age, and gender recognition. Many studies focus on individual tasks while the multi-task learning approach is still an open research issue…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Dang-Khanh Nguyen , Sudarshan Pant , Ngoc-Huynh Ho , Guee-Sang Lee , Soo-Huyng Kim , Hyung-Jeong Yang

While deep face recognition models have demonstrated remarkable performance, they often struggle on the inputs from domains beyond their training data. Recent attempts aim to expand the training set by relying on computationally expensive…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Mohammad Saeed Ebrahimi Saadabadi , Sahar Rahimi Malakshan , Seyed Rasoul Hosseini , Nasser M. Nasrabadi

Point supervision has become a scalable solution to address dense annotation for infrared small target detection, but its performance is limited by two coupled bottlenecks: unstable pseudo-label evolution in cluttered, low-contrast infrared…

Computer Vision and Pattern Recognition · Computer Science 2026-05-21 Zhu Liu , Yuanhang Yao , Ping Qian , Zihang Chen , Risheng Liu

Facial analysis models are increasingly applied in real-world applications that have significant impact on peoples' lives. However, as literature has shown, models that automatically classify facial attributes might exhibit algorithmic…

Computer Vision and Pattern Recognition · Computer Science 2022-06-15 Camila Kolling , Victor Araujo , Adriano Veloso , Soraia Raupp Musse

The activations of Facial Action Units (AUs) mutually influence one another. While the relationship between a pair of AUs can be complex and unique, existing approaches fail to specifically and explicitly represent such cues for each pair…

Computer Vision and Pattern Recognition · Computer Science 2022-08-03 Cheng Luo , Siyang Song , Weicheng Xie , Linlin Shen , Hatice Gunes

Human Activity Recognition (HAR) has become increasingly popular with ubiquitous computing, driven by the popularity of wearable sensors in fields like healthcare and sports. While Convolutional Neural Networks (ConvNets) have significantly…

Signal Processing · Electrical Eng. & Systems 2024-05-31 Shuai Shao , Yu Guan , Victor Sanchez

Temporal Action Segmentation (TAS) is an essential task in video analysis, aiming to segment and classify continuous frames into distinct action segments. However, the ambiguous boundaries between actions pose a significant challenge for…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Shuaibing Wang , Shunli Wang , Mingcheng Li , Dingkang Yang , Haopeng Kuang , Ziyun Qian , Lihua Zhang

Attention-based neural models were employed to detect the different aspects and sentiment polarities of the same target in targeted aspect-based sentiment analysis (TABSA). However, existing methods do not specifically pre-train reasonable…

Computation and Language · Computer Science 2019-06-18 Bin Liang , Jiachen Du , Ruifeng Xu , Binyang Li , Hejiao Huang

Facial Action Units (AUs) represent a set of facial muscular activities and various combinations of AUs can represent a wide range of emotions. AU recognition is often used in many applications, including marketing, healthcare, education,…

Computer Vision and Pattern Recognition · Computer Science 2021-07-09 Junya Saito , Xiaoyu Mi , Akiyoshi Uchida , Sachihiro Youoku , Takahisa Yamamoto , Kentaro Murase , Osafumi Nakayama

Identifying robust and accurate correspondences across images is a fundamental problem in computer vision that enables various downstream tasks. Recent semi-dense matching methods emphasize the effectiveness of fusing relevant cross-view…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Hongkai Chen , Zixin Luo , Yurun Tian , Xuyang Bai , Ziyu Wang , Lei Zhou , Mingmin Zhen , Tian Fang , David McKinnon , Yanghai Tsin , Long Quan

Facial Expression Analysis remains a challenging task due to unexpected task-irrelevant noise, such as identity, head pose, and background. To address this issue, this paper proposes a novel framework, called Norface, that is unified for…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Hanwei Liu , Rudong An , Zhimeng Zhang , Bowen Ma , Wei Zhang , Yan Song , Yujing Hu , Wei Chen , Yu Ding

This paper presents a subject-independent facial action unit (AU) detection method by introducing the concept of relative AU detection, for scenarios where the neutral face is not provided. We propose a new classification objective function…

Computer Vision and Pattern Recognition · Computer Science 2014-05-02 Mahmoud Khademi , Louis-Philippe Morency