ReviewIEEE transactions on bio-medical engineering2016
Photoplethysmography Revisited: From Contact to Noncontact, From Point to Imaging.
Review in IEEE transactions on bio-medical engineering, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 112 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
112 citing papers in PubMed, 1 synthesis or guideline pooled it, 539 citations in OpenAlex.
- Publication guidelines for human heart rate and heart rate variability studies in psychophysiology-Part 1: Physiological underpinnings and foundations of measurement.Psychophysiology · 2024Guideline
- Mechanical Contact Conditions in Wearable Reflectance Photoplethysmography: Scoping Review.JMIR mHealth and uHealth · 2026Article
- Missed isochromatic cardiac pulsation in remote photoplethysmography: detection, impact, and removal.Biomedical optics express · 2026Article
- Article
- Lighting effects on optimal facial regions for remote heart rate measurement.NPJ cardiovascular health · 2026Article
- A low-cost three-wavelength illumination system for camera-based photoplethysmography imaging.HardwareX · 2026Article
- Non-contact alcohol detection in mice using an imaging photoplethysmography (IPPG) system.Scientific reports · 2026Article
- Seconds Matter: Rapid Non-Contact Monitoring of Heart and Respiratory Rate from Face Videos.Sensors (Basel, Switzerland) · 2026Article
- A hybrid CNN-spectral architecture for non-contact respiratory rate estimation using multi-region optical-flow analysis.PloS one · 2026Article
- Optical methods for cuffless blood pressure measurements.Biophotonics discovery · 2026Review
- Noise-resilient spatial-channel refinement for robust remote photoplethysmography.Frontiers in bioengineering and biotechnology · 2026Article
- A non-contact blood pressure measurement method based on face video.Physical and engineering sciences in medicine · 2025Article
- Reconstruction of Respiratory Flow from an Impedance-Based Contactless Sensor System.Sensors (Basel, Switzerland) · 2025Article
- A 1-Dimensional Physiological Signal Prediction Method Based on Composite Feature Preprocessing and Multi-Scale Modeling.Sensors (Basel, Switzerland) · 2025Article
- Contactless Vital Sign Monitoring: A Review Towards Multi-Modal Multi-Task Approaches.Sensors (Basel, Switzerland) · 2025Review
- Diffusion-Phys: noise-robust heart rate estimation from facial videos via diffusion models.Biomedical engineering letters · 2025Article
- Automatic melanoma and non-melanoma skin cancer diagnosis using advanced adaptive fine-tuned convolution neural networks.Discover oncology · 2025Article
- A review of machine learning methods for non-invasive blood pressure estimation.Journal of clinical monitoring and computing · 2025Review
- Non-invasive detection of instantaneous fetal hypoxemia in large animal model of pregnancy.npj biomedical innovations · 2025Article
- Exploring Near- and Far-Field Effects in Photoplethysmography Signals Across Different Source-Detector Distances.Sensors (Basel, Switzerland) · 2024Article
52 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 2 institutions in 1 country.
Funding
Abstract
Photoplethysmography (PPG) is a noninvasive optical technique for detecting microvascular blood volume changes in tissues. Its ease of use, low cost and convenience make it an attractive area of research in the biomedical and clinical communities. Nevertheless, its single spot monitoring and the need to apply a PPG sensor directly to the skin limit its practicality in situations such as perfusion mapping and healing assessments or when free movement is required. The introduction of fast digital cameras into clinical imaging monitoring and diagnosis systems, the desire to reduce the physical restrictions, and the possible new insights that might come from perfusion imaging and mapping inspired the evolution of the conventional PPG technology to imaging PPG (IPPG). IPPG is a noncontact method that can detect heart-generated pulse waves by means of peripheral blood perfusion measurements. Since its inception, IPPG has attracted significant public interest and provided opportunities to improve personal healthcare. This study presents an overview of the wide range of IPPG systems currently being introduced along with examples of their application in various physiological assessments. We believe that the widespread acceptance of IPPG is happening, and it will dramatically accelerate the promotion of this healthcare model in the near future.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.