Photoplethysmography

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Overview

Photoplethysmography studies how light-based pulse signals can reveal heart rate, breathing, blood pressure, oxygen saturation, and cardiac conditions from wearable sensors or facial video. Methods range from filtering and physiological feature extraction to CNNs, Transformers, state-space models, and self-supervised or multimodal learning with ECG and clinical records. Research evaluates these approaches on tasks such as heart-rate tracking, cuffless blood-pressure estimation, atrial-fibrillation detection, and remote PPG under motion, lighting, device, and population changes. A central challenge is whether strong benchmark results generalize to individual people and real-world conditions, making subject-independent testing, uncertainty calibration, and careful checks for data leakage essential.

Latest papers

CardsList

63 papers5 papers in the last four weeks, up 25% on the four weeks before. 0.0% of all new papers.

  1. Interaction-Gated Time-Frequency Learning for Parameter-Efficient PPG-Based Heart Rate Estimation

    Oct 20, 2026Anh Khoi Pham, Phat Lam, Thien Truong Nguyen Ly +1Heart Rate EstimationPhotoplethysmography

    International University, Vietnam National University HCMC, Ho Chi Minh City, Vietnam · University of New Brunswick, Fredericton, Canada · Ho Chi Minh City University of Technology, Ho Chi Minh City, Vietnam +1

  2. HiPPT: Physiology-Grounded Wearable PPG Representation Learning via Multi-Scope Text Alignment

    Oct 10, 2026Jiaqi Wang, Wei Chen, Xiaoyu Li +7Representation LearningPhotoplethysmography

    Southeast University · OPPO · Shenzhen Technology University +1

  3. PPG-Bench: A Unified Benchmark for PPG Foundation Models

    Oct 9, 2026Arvasu Kulkarni, Mahir Jain, Aditya Ray Mishra +2PhotoplethysmographyTime-Series Foundation Models

    Mannas AI

  4. Teaching PPG How not Who: Fixed-Effects Distillation from ECG

    Oct 7, 2026Zhongli Wu, Zhuangzhi Gao, Yuankai Wang +3Cross-Modal Knowledge DistillationPhotoplethysmography

    Liverpool Centre for Cardiovascular Science, University of Liverpool, UK · Shanghai Artificial Intelligence Laboratory, Shanghai, China · Liverpool Heart and Chest Hospital, Liverpool, UK +1

  5. ExpertoRhythm: Morphology-Aware Learning for Waveform Reconstruction and Cuffless Blood Pressure Estimation from Single-Channel PPG

    Sep 28, 2026Amir Arjomand, Kenneth B. Kent, Georgiy KrylovPhotoplethysmographyWearable Health Monitoring

    University of New Brunswick, Fredericton, Canada

  6. Multi-Aperture PPG with MAPIS: Spatial Optical and Temporal Coherence Fields

    Sep 27, 2026Shuguang Wang, Yuanjing WangPhotoplethysmography

  7. PPG-LM: A Photoplethysmography-Language Model with Multi-Level Clinical Alignment

    Sep 27, 2026Xiaoda Wang, Minxiao Wang, Maxwell A Xu +10Multimodal PretrainingPhotoplethysmography

    Emory University · University of California, Los Angeles · Google +3

  8. Pulseflow: PPG Counterfactual Generation Via Latent Transport

    Sep 27, 2026Hung Manh Pham, Dong Ma, Bin Zhu +1Atrial Fibrillation DetectionCounterfactual Data Augmentation

    University of Cambridge, United Kingdom

  9. SIFPBPNet: A Dual-Path Network for Wearable and Cuffless Blood Pressure Estimation via Individualized Steady-state Representation

    Sep 11, 2026Shuailong Tang, Xiaoyu Li, Donglin Xie +4PhotoplethysmographyWearable Health Monitoring

    Shenzhen Technology University, Shenzhen, China · OPPO Health Lab, Shenzhen, China · Peking University, Beijing, China +1

  10. PhysVR: Vision-Language Model Guided Interference-aware Temporal Feature Refinement for Remote Physiological Measurement

    Aug 30, 2026Zixu Li, Jianjun Qian, Hang Shao +3Remote PhotoplethysmographyPhotoplethysmography

    PCA Lab, Key Lab of Intelligent Perception and Systems for High-Dimensional Information of Ministry of Education, School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China · College of Computer Science and Technology, Qingdao University, Qingdao 266071, China

  11. Property-Specific Recoverability from Contact PPG to Camera rPPG under Heterogeneous Observation Conditions

    Aug 27, 2026Timothy Oladunni, Farouk Ganiyu-AdewumiRemote PhotoplethysmographyPhotoplethysmography

    Department of Computer Science, Morgan State University, Baltimore, Maryland, USA

  12. Fuzzy Accuracy Compensates for Label Subjectivity in Classification of Skin Tone Using Wearable Photoplethysmography Signals

    Aug 19, 2026Padmini Krishnadas, Urs Hackstein, Alen Bosnjakovic +1ClassificationPhotoplethysmography

    Data Science and AI Department National Physical Laboratory Teddington, UK · Faculty of Life Science Engineering Mittelhessen University of Applied Sciences Giessen, Germany · Laboratory for Mass and Related Quantities Institute of Metrology of Bosnia and Herzegovina Sarajevo, Bosnia and Herzegovina

  13. Change Point--Aware Evaluation and Re-Calibration of PPG-Based Blood Pressure Estimation

    Aug 19, 2026Yunwon Tae, Minje Park, Gyunho Rho +2Cuffless Blood Pressure EstimationPost-Hoc Calibration

    VUNO Inc. · University of California, Irvine · Research Institute for Future Medicine, Samsung Medical Center +1

  14. Personalized and Explainable Blood Pressure Estimation from PPG via Hybrid CNN--Morphological Features

    Aug 11, 2026Myung-Kyu Yi, Jongshill Lee, Jeyeon Lee +1Cuffless Blood Pressure EstimationPhotoplethysmography

    Department of Biomedical Engineering, Hanyang University,, Seoul 04763, South Korea

  15. Feasibility of Embedded Photoplethysmography Sensing in Short-Duration Tactile Interactions With Pocket-Sized Robots Using IMU- and Confidence-Based Filtering

    Aug 4, 2026Turjja Datta, Morten Roed FrederiksenPhotoplethysmographyHuman-Robot Interaction

    Data Systems & Robotics Department of The IT-University of Copenhagen

  16. Reassessing the Feasibility of PPG-Based Non-Invasive Blood Glucose Level Estimation

    Aug 3, 2026Supraja Ramesh, Markus Neufeld, Michael Küttner +2Data LeakageOOD Generalization

    Karlsruhe Institute of Technology, Karlsruhe, Germany

  17. Rethinking PPG-based Sleep Staging: Datasets, Metrics, and Benchmarks

    Aug 2, 2026Shuntian Zheng, Jiawei Wang, Cong Fu +4Sleep Stage ClassificationPhotoplethysmography

    Department of Computer Science, The University of Warwick · School of Engineering, The University of Warwick · Department of Neurology, Huashan Hospital, Fudan University +2

  18. When Derived Measurements Mislead: Quantifying and Mitigating LLM Over-Trust with Privileged-Modality Reliability Evidence

    Jul 30, 2026Zongheng Guo, Tao Chen, Tianli Li +6LLM EvaluationLLM Reliability

    Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy · State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, China · Department of Integrated Traditional Chinese and Western Medicine Cardiology, China-Japan Friendship Hospital, Beijing, China +2

  19. PhysAgent: A Multi-Agent Framework for Reliable Remote Heart Rate Estimation

    Jul 29, 2026Yehui Yang, Bo Zhao, Junzhe Cao +4Remote PhotoplethysmographyHeart Rate Estimation

    1Great Bay University · 2Shenzhen University of Advanced Technology · 3Macao Polytechnic University +1

  20. Blood Pressure Estimation from PPG: A Comparative Study of Direct and ECG-Mediated Deep Learning Pipelines

    Jul 26, 2026Bo Wu, Haoling Wang, Zhuodiao Kuang +1PhotoplethysmographyWearable Health Monitoring

    Department of Informatics and Networked Systems University of Pittsburgh Pittsburgh, USA · Department of Biostatistics and Health Data Science University of Pittsburgh Pittsburgh, USA · Language Technologies Institute Carnegie Mellon University Pittsburgh, USA

  21. Physiological Signals as a Forensic Modality for Talking-Face Deepfake Detection

    Jul 23, 2026Othmane Harraq, Tamer AldwairiRemote PhotoplethysmographyDeepfake Detection

    Temple University

  22. Good Practice Guide for quantifying uncertainties for machine learning models applied to photoplethysmography signals

    Jul 22, 2026P. Harris, C. Bench, M. Rinkevičius +6Uncertainty QuantificationPhotoplethysmography

    PTB Physikalisch-Technische Bundesanstalt · NPL National Physical Laboratory · CMI Cesky Metrologicky Institut +5

  23. CanonicalPhys: Pose-Robust Remote Photoplethysmography via Canonical-Space Priors

    Jul 17, 2026Hui Wei, Seyedata Jodeiri Seyedian, Xiaobai Li +1Remote PhotoplethysmographyHeart Rate Estimation

    Center for Machine Vision and Signal Analysis (CMVS), University of Oulu · ELLIS Institute Finland · Zhejiang University

  24. SpO2_2 Predictor-Guided Stage-Wise Time-Frequency Reconstruction of Low-Quality Dual-Wavelength PPG for Oxygen Saturation Estimation

    Jul 9, 2026Zequan Liang, Elahe Hosseini, Ning Miao +5Photoplethysmography

    Department of Computer Science, University of California, Davis, Davis, CA, U.S.A. · Department of Electrical and Computer Engineering, University of California, Davis, Davis, CA, U.S.A.

  25. Rhythm-Structured Predictive Learning for Remote Photoplethysmography

    Jun 30, 2026Ba-Thinh Nguyen, Huu-Dung Nguyen, Thi-Duyen Ngo +1Remote PhotoplethysmographyMamba

    VNU University of Engineering and Technology, Hanoi, Vietnam

  26. Physically-Constrained Harmonic Separation for Robust Heart and Respiratory Rate Estimation from Wrist Photoplethysmography

    Jun 29, 2026Nouhaila Fraihi, Ouassim Karrakchou, Mounir GhoghoHeart Rate EstimationPhysics-Informed ML

    1TICLab, International University of Rabat, Morocco · College of Computing, Mohammed VI Polytechnic University, Morocco · Faculty of Engineering, University of Leeds, UK

  27. StreamPPG: Low-Latency rPPG Estimation via Consistent Privileged Learning

    Jun 22, 2026Yiming Li, Yihan Yang, Yuguang Chu +4Remote PhotoplethysmographyPhotoplethysmography

    ARXIV

  28. Attractor Domain Theory: A Mathematical Framework for Cardiovascular Attractor Analysis with Wearable Photoplethysmography (PPG) Validation

    Jun 20, 2026Timothy Oladunni, Farouk Ganiyu AdewumiDynamical SystemsPhotoplethysmography

    Department of Computer Science, Morgan State University, Baltimore, MD 21251, USA

  29. A Skin-Tone-Aware Dual-Representation Remote Photoplethysmography Framework for Contactless Respiratory Rate Estimation

    Jun 19, 2026Trishna Saikia, Anup Kumar Gupta, Puneet Gupta +1Remote PhotoplethysmographyPhotoplethysmography

  30. An Exploratory Study of Blood Glucose Estimation from Photoplethysmography Signals using Machine Learning

    Jun 14, 2026Ruhani Bhatia, Vijval EkboteWearable SensingPhotoplethysmography

    Indraprastha Institute of Information Technology, Delhi