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This work explores facial expression bias as a security vulnerability of face recognition systems. Despite the great performance achieved by state-of-the-art face recognition systems, the algorithms are still sensitive to a large range of…

Computer Vision and Pattern Recognition · Computer Science 2021-06-21 Alejandro Peña , Ignacio Serna , Aythami Morales , Julian Fierrez , Agata Lapedriza

In this paper, we present a novel single shot face-related task analysis method, called Face-SSD, for detecting faces and for performing various face-related (classification/regression) tasks including smile recognition, face attribute…

Computer Vision and Pattern Recognition · Computer Science 2019-02-12 Youngkyoon Jang , Hatice Gunes , Ioannis Patras

Training deep neural networks for image recognition often requires large-scale human annotated data. To reduce the reliance of deep neural solutions on labeled data, state-of-the-art semi-supervised methods have been proposed in the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Shuvendu Roy , Ali Etemad

Generating animal faces using generative AI techniques is challenging because the available training images are limited both in quantity and variation, particularly for facial expressions across individuals. In this study, we focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-11-24 Takuya Igaue , Catia Correia-Caeiro , Akito Yoshida , Takako Miyabe-Nishiwaki , Ryusuke Hayashi

Micro-expressions (MEs) are involuntary facial movements revealing people's hidden feelings in high-stake situations and have practical importance in medical treatment, national security, interrogations and many human-computer interaction…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Yante Li , Jinsheng Wei , Yang Liu , Janne Kauttonen , Guoying Zhao

In the beginning stage, face verification is done using easy method of geometric algorithm models, but the verification route has now developed into a scientific progress of complicated geometric representation and identical procedure. In…

Computer Vision and Pattern Recognition · Computer Science 2014-03-24 V. Karthikeyan , K. Vijayalakshmi , P. Jeyakumar

Finding and localizing the conceptual changes in two scenes in terms of the presence or removal of objects in two images belonging to the same scene at different times in special care applications is of great significance. This is mainly…

Computer Vision and Pattern Recognition · Computer Science 2023-01-02 Ali Atghaei , Ehsan Rahnama , Kiavash Azimi , Hassan Shahbazi

Most of the existing deep neural nets on automatic facial expression recognition focus on a set of predefined emotion classes, where the amount of training data has the biggest impact on performance. However, in the standard setting…

Computer Vision and Pattern Recognition · Computer Science 2019-12-12 Anca-Nicoleta Ciubotaru , Arnout Devos , Behzad Bozorgtabar , Jean-Philippe Thiran , Maria Gabrani

Open-set face recognition describes a scenario where unknown subjects, unseen during the training stage, appear on test time. Not only it requires methods that accurately identify individuals of interest, but also demands approaches that…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Rafael Henrique Vareto , William Robson Schwartz

Facial expression recognition (FER) algorithms classify facial expressions into emotions such as happy, sad, or angry. An evaluative challenge facing FER algorithms is the fall in performance when detecting spontaneous expressions compared…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Rina Khan , Catherine Stinson

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

Deep learning fostered a leap ahead in automated skin lesion analysis in the last two years. Those models are expensive to train and difficult to parameterize. Objective: We investigate methodological issues for designing and evaluating…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Eduardo Valle , Michel Fornaciali , Afonso Menegola , Julia Tavares , Flávia Vasques Bittencourt , Lin Tzy Li , Sandra Avila

Automated deception detection systems can enhance health, justice, and security in society by helping humans detect deceivers in high-stakes situations across medical and legal domains, among others. This paper presents a novel analysis of…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Leena Mathur , Maja J Matarić

In this paper, we describe an entry to the third Emotion Recognition in the Wild Challenge, EmotiW2015. We detail the associated experiments and show that, through more accurately locating the facial landmarks, and considering only the…

Computer Vision and Pattern Recognition · Computer Science 2016-03-31 Matthew Day

Accurate facial expression analysis is an essential step in various clinical applications that involve physical and mental health assessments of older adults (e.g. diagnosis of pain or depression). Although remarkable progress has been…

Computer Vision and Pattern Recognition · Computer Science 2019-05-21 Azin Asgarian , Shun Zhao , Ahmed B. Ashraf , M. Erin Browne , Kenneth M. Prkachin , Alex Mihailidis , Thomas Hadjistavropoulos , Babak Taati

Emotion recognition is involved in several real-world applications. With an increase in available modalities, automatic understanding of emotions is being performed more accurately. The success in Multimodal Emotion Recognition (MER),…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Riccardo Franceschini , Enrico Fini , Cigdem Beyan , Alessandro Conti , Federica Arrigoni , Elisa Ricci

In this paper, we study the task of 3D human pose estimation in the wild. This task is challenging due to lack of training data, as existing datasets are either in the wild images with 2D pose or in the lab images with 3D pose. We propose a…

Computer Vision and Pattern Recognition · Computer Science 2017-08-01 Xingyi Zhou , Qixing Huang , Xiao Sun , Xiangyang Xue , Yichen Wei

In this paper, we propose a novel deep inductive transfer learning framework, named feature distribution adaptation network, to tackle the challenging multi-modal speech emotion recognition problem. Our method aims to use deep transfer…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Shaokai Li , Yixuan Ji , Peng Song , Haoqin Sun , Wenming Zheng

We present a minimalistic but effective neural network that computes dense facial correspondences in highly unconstrained RGB images. Our network learns a per-pixel flow and a matchability mask between 2D input photographs of a person and…

Computer Vision and Pattern Recognition · Computer Science 2017-09-05 Ronald Yu , Shunsuke Saito , Haoxiang Li , Duygu Ceylan , Hao Li

The role of soft biometrics to enhance person recognition systems in unconstrained scenarios has not been extensively studied. Here, we explore the utility of the following modalities: gender, ethnicity, age, glasses, beard, and moustache.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Ester Gonzalez-Sosa , Julian Fierrez , Ruben Vera-Rodriguez , Fernando Alonso-Fernandez
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