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Remote photoplethysmography (rPPG) measurement enables non-contact physiological monitoring but suffers from accuracy degradation under head motion and illumination changes. Existing deep learning methods are mostly heuristic and lack…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Bo Zhao , Dan Guo , Junzhe Cao , Yong Xu , Bochao Zou , Tao Tan , Yue Sun , Zitong Yu

Remote photoplethysmography (rPPG), which aims at measuring heart activities and physiological signals from facial video without any contact, has great potential in many applications (e.g., remote healthcare and affective computing). Recent…

计算机视觉与模式识别 · 计算机科学 2023-02-08 Zitong Yu , Yuming Shen , Jingang Shi , Hengshuang Zhao , Yawen Cui , Jiehua Zhang , Philip Torr , Guoying Zhao

Remote photoplethysmography (rPPG) enables non-contact heart rate (HR) estimation from facial videos which gives significant convenience compared with traditional contact-based measurements. In the real-world long-term health monitoring…

计算机视觉与模式识别 · 计算机科学 2022-12-06 Jianwei Li , Zitong Yu , Jingang Shi

Remote photoplethysmography (rPPG), which aims at measuring heart activities without any contact, has great potential in many applications (e.g., remote healthcare). Existing rPPG approaches rely on analyzing very fine details of facial…

图像与视频处理 · 电气工程与系统科学 2019-07-30 Zitong Yu , Wei Peng , Xiaobai Li , Xiaopeng Hong , Guoying Zhao

MaskedFusion is a framework to estimate the 6D pose of objects using RGB-D data, with an architecture that leverages multiple sub-tasks in a pipeline to achieve accurate 6D poses. 6D pose estimation is an open challenge due to complex world…

计算机视觉与模式识别 · 计算机科学 2020-03-19 Nuno Pereira , Luís A. Alexandre

Purpose. Photoplethysmography (PPG) is a non-invasive technique that measures changes in blood flow volume through optical means. Previous research has established the feasibility of PPG peak detection based on the crossover of moving…

信号处理 · 电气工程与系统科学 2023-12-18 Cesar Abascal Machado , Victor O. Costa , Cesar Augusto Prior , Cesar Ramos Rodrigues

Remote Photoplethysmography (rPPG) is a non-contact method that uses facial video to predict changes in blood volume, enabling physiological metrics measurement. Traditional rPPG models often struggle with poor generalization capacity in…

计算机视觉与模式识别 · 计算机科学 2024-09-19 Yiping Xie , Zitong Yu , Bingjie Wu , Weicheng Xie , Linlin Shen

Currently in the domain of facial analysis single task approaches for face detection and landmark localization dominate. In this paper we draw attention to multi-task models solving both tasks simultaneously. We present a highly accurate…

计算机视觉与模式识别 · 计算机科学 2020-05-20 Dmitry Yashunin , Tamir Baydasov , Roman Vlasov

Diversity and unpredictability of artifacts potentially presented to an iris sensor calls for presentation attack detection methods that are agnostic to specificity of presentation attack instruments. This paper proposes a method that…

计算机视觉与模式识别 · 计算机科学 2020-08-06 Zhaoyuan Fang , Adam Czajka , Kevin W. Bowyer

Photoplethysmography (PPG) signals, typically acquired from wearable devices, hold significant potential for continuous fitness-health monitoring. In particular, heart conditions that manifest in rare and subtle deviating heart patterns may…

机器学习 · 计算机科学 2023-07-14 Ramin Ghorbani , Marcel J. T. Reinders , David M. J. Tax

This paper addresses the problem of 3D face recognition using simultaneous sparse approximations on the sphere. The 3D face point clouds are first aligned with a novel and fully automated registration process. They are then represented as…

计算机视觉与模式识别 · 计算机科学 2008-10-30 R. Sala Llonch , E. Kokiopoulou , I. Tosic , P. Frossard

The rapid advancement of machine learning technologies raises questions about the security of machine learning models, with respect to both training-time (poisoning) and test-time (evasion, impersonation, and inversion) attacks. Models…

计算机视觉与模式识别 · 计算机科学 2025-03-21 Xinheng Xie , Kureha Yamaguchi , Margaux Leblanc , Simon Malzard , Varun Chhabra , Victoria Nockles , Yue Wu

Active illumination is a prominent complement to enhance 2D face recognition and make it more robust, e.g., to spoofing attacks and low-light conditions. In the present work we show that it is possible to adopt active illumination to…

计算机视觉与模式识别 · 计算机科学 2020-04-08 J. Matias Di Martino , Fernando Suzacq , Mauricio Delbracio , Qiang Qiu , Guillermo Sapiro

Deep learning-based facial recognition (FR) models have demonstrated state-of-the-art performance in the past few years, even when wearing protective medical face masks became commonplace during the COVID-19 pandemic. Given the outstanding…

计算机视觉与模式识别 · 计算机科学 2022-09-08 Alon Zolfi , Shai Avidan , Yuval Elovici , Asaf Shabtai

Facial biometrics are an essential components of smartphones to ensure reliable and trustworthy authentication. However, face biometric systems are vulnerable to Presentation Attacks (PAs), and the availability of more sophisticated…

计算机视觉与模式识别 · 计算机科学 2024-04-22 Raghavendra Ramachandra , Narayan Vetrekar , Sushma Venkatesh , Savita Nageshker , Jag Mohan Singh , R. S. Gad

This work introduces a novel DeepFake detection framework based on physiological measurement. In particular, we consider information related to the heart rate using remote photoplethysmography (rPPG). rPPG methods analyze video sequences…

计算机视觉与模式识别 · 计算机科学 2020-12-15 Javier Hernandez-Ortega , Ruben Tolosana , Julian Fierrez , Aythami Morales

Infrared small target detection (IRSTD) methods predominantly formulate the task as pixel-level segmentation, which requires costly dense annotations and is not well suited to tiny targets with weak texture and ambiguous boundaries. To…

计算机视觉与模式识别 · 计算机科学 2026-03-18 Weihua Gao , Wenlong Niu , Jie Tang , Man Yang , Jiafeng Zhang , Xiaodong Peng

Deep neural networks (DNNs) have achieved state-of-the-art performance on face recognition (FR) tasks in the last decade. In real scenarios, the deployment of DNNs requires taking various face accessories into consideration, like glasses,…

计算机视觉与模式识别 · 计算机科学 2023-09-19 Huihui Gong , Minjing Dong , Siqi Ma , Seyit Camtepe , Surya Nepal , Chang Xu

In the absence of vaccines or medicines to stop COVID-19, one of the effective methods to slow the spread of the coronavirus and reduce the overloading of healthcare is to wear a face mask. Nevertheless, to mandate the use of face masks or…

计算机视觉与模式识别 · 计算机科学 2021-10-04 Chun-Wei Yang , Thanh-Hai Phung , Hong-Han Shuai , Wen-Huang Cheng

Unaddressed pain in neonates can lead to adverse effects, including delayed development and slower weight gain, emphasising the need for more objective and reliable pain assessment methods. Hence, automated methods using behavioural and…

计算机视觉与模式识别 · 计算机科学 2026-04-29 Ashutosh Dhamaniya , Anup Kumar Gupta , Trishna Saikia , Puneet Gupta